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A363749 Number of compositions into sums of fifth powers. 2

%I #17 Jun 19 2023 22:35:40

%S 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,3,

%T 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,

%U 29,30,31,32,33,35,38,42,47,53,60,68,77,87,98,110,123,137,152,168,185

%N Number of compositions into sums of fifth powers.

%C This sequence is different from A291168.

%H Seiichi Manyama, <a href="/A363749/b363749.txt">Table of n, a(n) for n = 0..10000</a>

%F G.f.: 1/(1 - Sum_{k>=1} x^(k^5)).

%o (PARI) a_vector(n) = my(v=vector(n+1)); v[1]=1; for(i=1, n, v[i+1]=sum(j=1, i, ispower(j, 5)*v[i-j+1])); v;

%Y Cf. A006456, A023358, A363748.

%Y Cf. A000584, A291168, A352530.

%K nonn

%O 0,33

%A _Seiichi Manyama_, Jun 19 2023

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Last modified August 12 19:26 EDT 2024. Contains 375113 sequences. (Running on oeis4.)