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A121702 a(n)=2^(n^3-1). 0

%I #9 Apr 10 2024 08:04:02

%S 1,128,67108864,9223372036854775808,

%T 21267647932558653966460912964485513216,

%U 52656145834278593348959013841835216159447547700274555627155488768

%N a(n)=2^(n^3-1).

%C Number of grains of wheat on last cube of n X n X n cube.

%p [seq(2^(n^3-1),n=1..8)];

%t 2^(Range[10]^3-1) (* _Harvey P. Dale_, Jul 24 2022 *)

%Y Cf. A103488.

%K easy,nonn,changed

%O 1,2

%A _Zerinvary Lajos_, Sep 10 2006

%E Offset changed to 1 by _Georg Fischer_, Apr 10 2024

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)