0,3
L. Comtet, Analyse Combinatoire, P. U. F., 1970, tome second, p. 140, #12.
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 293, Problem 11.
S. R. Finch, Mathematical Constants, Cambridge, 2003, Section 1 . 3 . 1.
Sum_{n>=0} a(n)/(2n)!*x^n = (1 - x)^(-1/x) / e.
a(n) = A055505(n)*(2n)! / A055535(n).
1 + 1/2!*x + 11/4!*x^2 + 315/6!*x^3 + 17129/8!*x^4 + 503475/10!*x^5 + ...
Cf. A055505, A055535.
Sequence in context: A070278 A090272 A090271 * A108274 A176285 A115609
Adjacent sequences: A106824 A106825 A106826 * A106828 A106829 A106830
nonn,frac
DELEHAM Philippe (kolotoko(AT)wanadoo.fr), May 21 2005
