0,2

Denominators in the series for Bessel's J0(x)= 1 -x^2/4 +x^4/64 -x^6/2304 +-...

Bronstein-Semendjajew, Taschenbuch der Mathematik, 7th german ed. 1965, ch. 4.4.7

A. Fletcher, J. C. P. Miller, L. Rosenhead, and L. J. Comrie, An Index of Mathematical Tables. Vols. 1 and 2, 2nd ed., Blackwell, Oxford and Addison-Wesley, Reading, MA, 1962, Vol. 1, p. 110.

E. L. Ince, Ordinary Differential Equations, Dover, NY, 1956; see p. 173.

J. Riordan, Combinatorial Identities, Wiley, 1968, p. 217.

T. R. Van Oppolzer, Lehrbuch zur Bahnbestimmung der Kometen und Planeten, Vol. 2, Engelmann, Leipzig, 1880, p. 7.

T. D. Noe, Table of n, a(n) for n=0..50

Index entries for sequences related to factorial numbers

(-1)^n*a(n) is the coefficient of x^1 in prod(k=0, 2*n, x+2*k-2*n). - Benoit Cloitre and Michael Somos, Nov 22, 2002.

Cf. A000165, A001818.

J1: A002474, J2: A002506, J3: A014401.

Sequence in context: A050636 A098698 A081559 this_sequence A013043 A088065 A053718

Adjacent sequences: A002451 A002452 A002453 this_sequence A002455 A002456 A002457

nonn,easy

njas