A249477 - cp's OEIS frontend

A249477 E.g.f.: exp(4)*P(x) - Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n) and Q(x) = Sum_{n>=1} 4^n/Product_{k=1..n} (k - x^k).

n	a(n)
0	1
1	1
2	7
3	47
4	360
5	2884
6	26068
7	250140
8	2659544
9	30188024
10	373401768
11	4911407656
12	69701336160
13	1046114985408
14	16770977757888
15	283455401409920
16	5076208319560320
17	95434083840830080
18	1890657361059194240
19	39170792604756397440
20	850920224456551054336
21	19275340855527901297152

[1, 1, 7, 47, 360, 2884, 26068, 250140, 2659544, 30188024, 373401768, 4911407656, 69701336160, 1046114985408, 16770977757888, 283455401409920, 5076208319560320, 95434083840830080, 1890657361059194240, 39170792604756397440, 850920224456551054336, 19275340855527901297152]

cp's OEIS Frontend

A249477 E.g.f.: exp(4)*P(x) - Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n) and Q(x) = Sum_{n>=1} 4^n/Product_{k=1..n} (k - x^k).

Table of values

List of values