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A178425 29 followed by the base-30 Fermat numbers. 0

%I #3 Mar 30 2012 17:34:41

%S 29,31,901,810001,656100000001,430467210000000000000001,

%T 185302018885184100000000000000000000000000000001,

%U 34336838202925124846578490892810000000000000000000000000000000000000000000000000000000000000001

%N 29 followed by the base-30 Fermat numbers.

%F a(n)= 30^(2^(n-1))+1, n>0.

%F a(n)= 2+ product_{i<n} a(i).

%F a(n)= 1 + (a(n-1)-1)^2, n>1.

%t Clear[a, n];

%t a[0] := 29;

%t a[n_] := a[n] = Product[a[i], {i, 0, n - 1}] + 2;

%t Table[a[n], {n, 0, 10}]

%Y Cf. A000215

%K nonn,easy

%O 0,1

%A _Roger L. Bagula_, May 27 2010

%E Edited by the Assoc. Eds. of the OEIS, Jul 20 2010

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)