A158985 - cp's OEIS frontend

A158985 Coefficients of polynomials (in descending powers of x) P(n,x) := 1 + P(n-1,x)^2, where P(1,x) = x + 1.

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	4
8	8
9	8
10	5
11	1
12	8
13	32
14	80
15	138
16	168
17	144
18	80
19	26
20	1
21	16
22	128
23	672
24	2580
25	7664
26	18208
27	35296
28	56472
29	74944
30	82432
31	74624
32	54792
33	31776
34	13888
35	4160
36	677
37	1
38	32
39	512
40	5440
41	43048
42	269920
43	1393728
44	6082752
45	22860480
46	75010560
47	217147904

[1, 1, 1, 2, 2, 1, 4, 8, 8, 5, 1, 8, 32, 80, 138, 168, 144, 80, 26, 1, 16, 128, 672, 2580, 7664, 18208, 35296, 56472, 74944, 82432, 74624, 54792, 31776, 13888, 4160, 677, 1, 32, 512, 5440, 43048, 269920, 1393728, 6082752, 22860480, 75010560, 217147904]

cp's OEIS Frontend

A158985 Coefficients of polynomials (in descending powers of x) P(n,x) := 1 + P(n-1,x)^2, where P(1,x) = x + 1.

Table of values

List of values