A309846 - cp's OEIS frontend

A309846 Number of degree n polynomials f with all nonzero coefficients equal to 1 such that f(k) is divisible by 4 for all integers k.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	2
7	6
8	10
9	20
10	32
11	64
12	120
13	256
14	512
15	1056
16	2080
17	4160
18	8192
19	16384
20	32640
21	65536
22	131072
23	262656
24	524800
25	1049600
26	2097152
27	4194304
28	8386560
29	16777216
30	33554432
31	67117056
32	134225920
33	268451840
34	536870912
35	1073741824
36	2147450880
37	4294967296
38	8589934592
39	17180000256
40	34359869440

[0, 0, 0, 0, 1, 2, 6, 10, 20, 32, 64, 120, 256, 512, 1056, 2080, 4160, 8192, 16384, 32640, 65536, 131072, 262656, 524800, 1049600, 2097152, 4194304, 8386560, 16777216, 33554432, 67117056, 134225920, 268451840, 536870912, 1073741824, 2147450880, 4294967296, 8589934592, 17180000256, 34359869440]

cp's OEIS Frontend

A309846 Number of degree n polynomials f with all nonzero coefficients equal to 1 such that f(k) is divisible by 4 for all integers k.

Table of values

List of values