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Self-convolution of A008485.
4

%I #11 Aug 28 2019 11:15:28

%S 1,2,11,54,279,1442,7530,39474,207693,1095522,5790116,30650038,

%T 162451560,861920492,4577055823,24323292984,129338944225,688128700422,

%U 3662798123481,19504467792378,103899170100154,553642311668244,2951010332435759,15733439067954134

%N Self-convolution of A008485.

%H Vaclav Kotesovec, <a href="/A327215/b327215.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n) ~ c^2 * Pi * d^n, where d = A270915 = 5.352701333486642687772415814165... and c = A327279 = 0.26801521271073331568695383828... (see A008485).

%t A008485[n_]:=SeriesCoefficient[Product[1/(1-x^k)^n, {k, 1, n}], {x, 0, n}];

%t Table[Sum[A008485[k]*A008485[n-k], {k, 0, n}], {n, 0, 25}]

%Y Cf. A000712, A008485, A304444, A309986, A327214.

%K nonn

%O 0,2

%A _Vaclav Kotesovec_, Aug 26 2019

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Last modified September 19 23:07 EDT 2024. Contains 376015 sequences. (Running on oeis4.)