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a(n) is the smallest cube that begins with n^2.
2

%I #11 Jan 30 2022 09:53:23

%S 1,4096,9261,166375,250047,3652264,4913,64,8120601,1000,12167,1442897,

%T 16974593,19683,225866529,25672375,28934443,3241792,3616805375,

%U 40001688,4410944,4843965888,529475129,5764224257,62570773,676836152

%N a(n) is the smallest cube that begins with n^2.

%C Differs from A030690.

%F a(n) = (A138173(n))^3.

%Y Cf. A030690, A030691, A018852, A018797, A077729, A077730, A138173.

%K nonn,base

%O 1,2

%A _Zak Seidov_, Mar 05 2008

%E Corrected by _D. S. McNeil_, Dec 12 2010