A249476 - cp's OEIS frontend

A249476 E.g.f.: exp(3)*P(x) - Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n) and Q(x) = Sum_{n>=1} 3^n/Product_{k=1..n} (k - x^k).

n	a(n)
0	1
1	1
2	6
3	35
4	242
5	1773
6	15056
7	136652
8	1393722
9	15257919
10	183206388
11	2347929936
12	32602306542
13	479885400177
14	7563888117504
15	125952344438838
16	2225653414414386
17	41351620513521627
18	810520833521436732
19	16633643598838880244
20	358221783030360367014
21	8051927483267030640573

[1, 1, 6, 35, 242, 1773, 15056, 136652, 1393722, 15257919, 183206388, 2347929936, 32602306542, 479885400177, 7563888117504, 125952344438838, 2225653414414386, 41351620513521627, 810520833521436732, 16633643598838880244, 358221783030360367014, 8051927483267030640573]

cp's OEIS Frontend

A249476 E.g.f.: exp(3)*P(x) - Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n) and Q(x) = Sum_{n>=1} 3^n/Product_{k=1..n} (k - x^k).

Table of values

List of values