A177701 - cp's OEIS frontend

A177701 Triangle of coefficients of polynomials P_n(z) defined by the recursion P_0(z) = z+1; for n>=1, P_n(z) = z + Product_{k=0..n-1} P_k(z).

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	1
8	4
9	14
10	16
11	8
12	1
13	16
14	112
15	324
16	508
17	474
18	268
19	88
20	16
21	1
22	256
23	3584
24	22912
25	88832
26	233936
27	443936
28	628064
29	675456
30	557492
31	353740
32	171644
33	62878
34	17000
35	3264
36	416
37	32
38	1
39	65536
40	1835008
41	24576000
42	209715200
43	1281482752
44	5974786048
45	22114709504
46	66752724992

[1, 1, 2, 1, 2, 4, 1, 4, 14, 16, 8, 1, 16, 112, 324, 508, 474, 268, 88, 16, 1, 256, 3584, 22912, 88832, 233936, 443936, 628064, 675456, 557492, 353740, 171644, 62878, 17000, 3264, 416, 32, 1, 65536, 1835008, 24576000, 209715200, 1281482752, 5974786048, 22114709504, 66752724992]

cp's OEIS Frontend

A177701 Triangle of coefficients of polynomials P_n(z) defined by the recursion P_0(z) = z+1; for n>=1, P_n(z) = z + Product_{k=0..n-1} P_k(z).

Table of values

List of values