A158983 - cp's OEIS frontend

A158983 Coefficients of polynomials (in descending powers of x) P(n,x) := 2 + P(n-1,x)^2, where P(1,x) = x + 2.

n	a(n)
1	1
2	2
3	1
4	4
5	6
6	1
7	8
8	28
9	48
10	38
11	1
12	16
13	120
14	544
15	1628
16	3296
17	4432
18	3648
19	1446
20	1
21	32
22	496
23	4928
24	35064
25	189248
26	800992
27	2711424
28	7419740
29	16475584
30	29610272
31	42666880
32	48398416
33	41867904
34	26125248
35	10550016
36	2090918
37	1
38	64
39	2016
40	41600
41	631536

[1, 2, 1, 4, 6, 1, 8, 28, 48, 38, 1, 16, 120, 544, 1628, 3296, 4432, 3648, 1446, 1, 32, 496, 4928, 35064, 189248, 800992, 2711424, 7419740, 16475584, 29610272, 42666880, 48398416, 41867904, 26125248, 10550016, 2090918, 1, 64, 2016, 41600, 631536]

cp's OEIS Frontend

A158983 Coefficients of polynomials (in descending powers of x) P(n,x) := 2 + P(n-1,x)^2, where P(1,x) = x + 2.

Table of values

List of values