A249607 - cp's OEIS frontend

A249607 E.g.f.: BesselJ(0,2)*P(x) + Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n^2) and Q(x) = Sum_{n>=1} -(-1)^n/Product_{k=1..n} (k^2 - x^k).

n	a(n)
0	1
1	1
2	4
3	37
4	600
5	15229
6	554868
7	27444786
8	1770376080
9	144306428161
10	14507072762052
11	1762845211827574
12	254794661274061848
13	43191427238728121445
14	8488249087135630544628
15	1914196040519793284483542
16	491024013925643339847990144
17	142153433027873627036756565313

[1, 1, 4, 37, 600, 15229, 554868, 27444786, 1770376080, 144306428161, 14507072762052, 1762845211827574, 254794661274061848, 43191427238728121445, 8488249087135630544628, 1914196040519793284483542, 491024013925643339847990144, 142153433027873627036756565313]

cp's OEIS Frontend

A249607 E.g.f.: BesselJ(0,2)*P(x) + Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n^2) and Q(x) = Sum_{n>=1} -(-1)^n/Product_{k=1..n} (k^2 - x^k).

Table of values

List of values