This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A121702 #9 Apr 10 2024 08:04:02 %S A121702 1,128,67108864,9223372036854775808, %T A121702 21267647932558653966460912964485513216, %U A121702 52656145834278593348959013841835216159447547700274555627155488768 %N A121702 a(n)=2^(n^3-1). %C A121702 Number of grains of wheat on last cube of n X n X n cube. %p A121702 [seq(2^(n^3-1),n=1..8)]; %t A121702 2^(Range[10]^3-1) (* _Harvey P. Dale_, Jul 24 2022 *) %Y A121702 Cf. A103488. %K A121702 easy,nonn %O A121702 1,2 %A A121702 _Zerinvary Lajos_, Sep 10 2006 %E A121702 Offset changed to 1 by _Georg Fischer_, Apr 10 2024