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Number of compositions of n into distinct parts with exactly seven descents.
2

%I #4 Apr 28 2014 09:50:12

%S 1,1,2,3,5,7,11,15,22,531,542,1056,1576,2599,3630,5668,7716,11274,

%T 15348,68774,75382,132851,191346,301710,414613,628232,845401,1213643,

%U 1634287,2256360,5137346,6161809,9496049,13277964,19515699,26349160,37943650,50425938

%N Number of compositions of n into distinct parts with exactly seven descents.

%H Alois P. Heinz, <a href="/A241726/b241726.txt">Table of n, a(n) for n = 36..1000</a>

%Y Column k=7 of A241719.

%K nonn

%O 36,3

%A _Alois P. Heinz_, Apr 27 2014