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A279640 Exponential transform of the seventh powers A001015.

%I A279640 #4 Dec 16 2016 10:48:23
%S A279640 1,1,129,2572,75053,3228316,129317797,6067246144,321040274585,
%T A279640 17868559819600,1077981490855241,69836621117631424,
%U A279640 4779269972787701701,345917535629669229760,26385854407691758178669,2109071203770345994999936,176264605227324999129677873
%N A279640 Exponential transform of the seventh powers A001015.
%H A279640 Alois P. Heinz, <a href="/A279640/b279640.txt">Table of n, a(n) for n = 0..384</a>
%F A279640 E.g.f.: exp(exp(x)*(x^7+21*x^6+140*x^5+350*x^4+301*x^3+63*x^2+x)).
%p A279640 a:= proc(n) option remember; `if`(n=0, 1,
%p A279640       add(binomial(n-1, j-1)*j^7*a(n-j), j=1..n))
%p A279640     end:
%p A279640 seq(a(n), n=0..25);
%Y A279640 Column k=7 of A279636.
%Y A279640 Cf. A001015.
%K A279640 nonn
%O A279640 0,3
%A A279640 _Alois P. Heinz_, Dec 16 2016