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A007280 Multiplicative encoding of partition triangle.
(Formerly M1694)
0

%I M1694 #14 Dec 03 2017 18:27:48

%S 2,6,30,630,34650,47297250,309560501250,618190773193743750,

%T 66537433850544954015468750,65572844234095125006030612749369531250,

%U 70740128442809835497514843888197127919441136894531250

%N Multiplicative encoding of partition triangle.

%D L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 307.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H N. J. A. Sloane, An on-line version of the Encyclopedia of Integer Sequences, <a href="http://www.combinatorics.org/Volume_1/volume1.html#F1">Electronic J. Combinatorics</a>, Vol. 1, no. 1, 1994.

%F a(n) = Product_{k=1..n} prime(n)^A008284(n,k). - _Sean A. Irvine_, Dec 03 2017

%Y Cf. A000040.

%K nonn

%O 1,1

%A _N. J. A. Sloane_.

%E a(11) from _Sean A. Irvine_, Dec 03 2017

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)