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Please only share links to OEIS sequences! I'll start: http://oeis.org/A000292 Tetrahedral (or triangular pyramidal) numbers





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Posts: 5010 Joined: 30Aug2008 Last visit: 18Sep2020 Location: square root of minus one

https://oeis.org/A000032 Lucas numbers Lots of interesting footnotes to this one. Ora, lege, lege, lege, relege et labora“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position visàvis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work." ― Jacques Bergier, quoting Fulcanelli



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https://oeis.org/A002559 Markoff (or Markov) numbers



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downwardsfromzero wrote:https://oeis.org/A000032 Lucas numbers
Lots of interesting footnotes to this one. https://oeis.org/A000045 Fibonacci numbers



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muladharma wrote:https://oeis.org/A000045 Fibonacci numbers I nearly started with that one but thought it was too obvious Ora, lege, lege, lege, relege et labora“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position visàvis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work." ― Jacques Bergier, quoting Fulcanelli



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Posts: 5010 Joined: 30Aug2008 Last visit: 18Sep2020 Location: square root of minus one

http://oeis.org/A000384
hexagonal numbers Ora, lege, lege, lege, relege et labora“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position visàvis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work." ― Jacques Bergier, quoting Fulcanelli



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http://oeis.org/A034444 a(n) is the number of unitary divisors of n (d such that d divides n, gcd(d, n/d) = 1)



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https://oeis.org/A007894 Number of fullerenes with 2n vertices (or carbon atoms). Brinkmann, Gunnar and Dress, Andreas W. M.; A constructive enumeration of fullerenes. J. Algorithms 23 (1997), no. 2, 345358.



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Posts: 104 Joined: 03Jun2017 Last visit: 20Sep2020

https://oeis.org/A000079 Powers of 2: a(n) = 2^n. (Formerly M1129 N0432)
