A134662 - cp's OEIS frontend

A134662 Number of odd coefficients in (1 + x + x^4)^n.

n	a(n)
0	1
1	3
2	3
3	9
4	3
5	7
6	9
7	17
8	3
9	9
10	7
11	21
12	9
13	17
14	17
15	33
16	3
17	9
18	9
19	27
20	7
21	17
22	21
23	43
24	9
25	27
26	17
27	51
28	17
29	35
30	33
31	67
32	3
33	9
34	9
35	27
36	9
37	21
38	27
39	51
40	7
41	21
42	17
43	51
44	21
45	41
46	43
47	83
48	9
49	27
50	27
51	81
52	17
53	43
54	51
55	113
56	17
57	51
58	35
59	105
60	33
61	67
62	67
63	137
64	3
65	9
66	9
67	27
68	9
69	21
70	27
71	51
72	9
73	27
74	21
75	63
76	27
77	51

[1, 3, 3, 9, 3, 7, 9, 17, 3, 9, 7, 21, 9, 17, 17, 33, 3, 9, 9, 27, 7, 17, 21, 43, 9, 27, 17, 51, 17, 35, 33, 67, 3, 9, 9, 27, 9, 21, 27, 51, 7, 21, 17, 51, 21, 41, 43, 83, 9, 27, 27, 81, 17, 43, 51, 113, 17, 51, 35, 105, 33, 67, 67, 137, 3, 9, 9, 27, 9, 21, 27, 51, 9, 27, 21, 63, 27, 51]

cp's OEIS Frontend

A134662 Number of odd coefficients in (1 + x + x^4)^n.

Table of values

List of values

n	a(n)
0	1
1	3
2	3
3	9
4	3
5	7
6	9
7	17
8	3
9	9
10	7
11	21
12	9
13	17
14	17
15	33
16	3
17	9
18	9
19	27
20	7
21	17
22	21
23	43
24	9
25	27
26	17
27	51
28	17
29	35
30	33
31	67
32	3
33	9
34	9
35	27
36	9
37	21
38	27
39	51
40	7
41	21
42	17
43	51
44	21
45	41
46	43
47	83
48	9
49	27
50	27
51	81
52	17
53	43
54	51
55	113
56	17
57	51
58	35
59	105
60	33
61	67
62	67
63	137
64	3
65	9
66	9
67	27
68	9
69	21
70	27
71	51
72	9
73	27
74	21
75	63
76	27
77	51

n	a(n)
0	1
1	3
2	3
3	9
4	3
5	7
6	9
7	17
8	3
9	9
10	7
11	21
12	9
13	17
14	17
15	33
16	3
17	9
18	9
19	27
20	7
21	17
22	21
23	43
24	9
25	27
26	17
27	51
28	17
29	35
30	33
31	67
32	3
33	9
34	9
35	27
36	9
37	21
38	27
39	51
40	7
41	21
42	17
43	51
44	21
45	41
46	43
47	83
48	9
49	27
50	27
51	81
52	17
53	43
54	51
55	113
56	17
57	51
58	35
59	105
60	33
61	67
62	67
63	137
64	3
65	9
66	9
67	27
68	9
69	21
70	27
71	51
72	9
73	27
74	21
75	63
76	27
77	51

n	a(n)
0	1
1	3
2	3
3	9
4	3
5	7
6	9
7	17
8	3
9	9
10	7
11	21
12	9
13	17
14	17
15	33
16	3
17	9
18	9
19	27
20	7
21	17
22	21
23	43
24	9
25	27
26	17
27	51
28	17
29	35
30	33
31	67
32	3
33	9
34	9
35	27
36	9
37	21
38	27
39	51
40	7
41	21
42	17
43	51
44	21
45	41
46	43
47	83
48	9
49	27
50	27
51	81
52	17
53	43
54	51
55	113
56	17
57	51
58	35
59	105
60	33
61	67
62	67
63	137
64	3
65	9
66	9
67	27
68	9
69	21
70	27
71	51
72	9
73	27
74	21
75	63
76	27
77	51