A151553 - cp's OEIS frontend

A151553 G.f.: (1 + x) * Product_{n>=1} (1 + x^(2^n-1) + x^(2^n)).

n	a(n)
0	1
1	2
2	2
3	2
4	3
5	4
6	3
7	2
8	3
9	4
10	4
11	5
12	7
13	7
14	4
15	2
16	3
17	4
18	4
19	5
20	7
21	7
22	5
23	5
24	7
25	8
26	9
27	12
28	14
29	11
30	5
31	2
32	3
33	4
34	4
35	5
36	7
37	7
38	5
39	5
40	7
41	8
42	9
43	12
44	14
45	11
46	6
47	5
48	7
49	8
50	9
51	12
52	14
53	12
54	10
55	12
56	15
57	17
58	21
59	26
60	25
61	16
62	6
63	2
64	3
65	4
66	4
67	5
68	7
69	7
70	5
71	5
72	7
73	8
74	9
75	12
76	14
77	11
78	6
79	5
80	7
81	8
82	9
83	12
84	14
85	12
86	10
87	12
88	15
89	17
90	21
91	26

[1, 2, 2, 2, 3, 4, 3, 2, 3, 4, 4, 5, 7, 7, 4, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 5, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 6, 5, 7, 8, 9, 12, 14, 12, 10, 12, 15, 17, 21, 26, 25, 16, 6, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 6, 5, 7, 8, 9, 12, 14, 12, 10, 12, 15, 17, 21, 26]

cp's OEIS Frontend

A151553 G.f.: (1 + x) * Product_{n>=1} (1 + x^(2^n-1) + x^(2^n)).

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	2
4	3
5	4
6	3
7	2
8	3
9	4
10	4
11	5
12	7
13	7
14	4
15	2
16	3
17	4
18	4
19	5
20	7
21	7
22	5
23	5
24	7
25	8
26	9
27	12
28	14
29	11
30	5
31	2
32	3
33	4
34	4
35	5
36	7
37	7
38	5
39	5
40	7
41	8
42	9
43	12
44	14
45	11
46	6
47	5
48	7
49	8
50	9
51	12
52	14
53	12
54	10
55	12
56	15
57	17
58	21
59	26
60	25
61	16
62	6
63	2
64	3
65	4
66	4
67	5
68	7
69	7
70	5
71	5
72	7
73	8
74	9
75	12
76	14
77	11
78	6
79	5
80	7
81	8
82	9
83	12
84	14
85	12
86	10
87	12
88	15
89	17
90	21
91	26

n	a(n)
0	1
1	2
2	2
3	2
4	3
5	4
6	3
7	2
8	3
9	4
10	4
11	5
12	7
13	7
14	4
15	2
16	3
17	4
18	4
19	5
20	7
21	7
22	5
23	5
24	7
25	8
26	9
27	12
28	14
29	11
30	5
31	2
32	3
33	4
34	4
35	5
36	7
37	7
38	5
39	5
40	7
41	8
42	9
43	12
44	14
45	11
46	6
47	5
48	7
49	8
50	9
51	12
52	14
53	12
54	10
55	12
56	15
57	17
58	21
59	26
60	25
61	16
62	6
63	2
64	3
65	4
66	4
67	5
68	7
69	7
70	5
71	5
72	7
73	8
74	9
75	12
76	14
77	11
78	6
79	5
80	7
81	8
82	9
83	12
84	14
85	12
86	10
87	12
88	15
89	17
90	21
91	26

n	a(n)
0	1
1	2
2	2
3	2
4	3
5	4
6	3
7	2
8	3
9	4
10	4
11	5
12	7
13	7
14	4
15	2
16	3
17	4
18	4
19	5
20	7
21	7
22	5
23	5
24	7
25	8
26	9
27	12
28	14
29	11
30	5
31	2
32	3
33	4
34	4
35	5
36	7
37	7
38	5
39	5
40	7
41	8
42	9
43	12
44	14
45	11
46	6
47	5
48	7
49	8
50	9
51	12
52	14
53	12
54	10
55	12
56	15
57	17
58	21
59	26
60	25
61	16
62	6
63	2
64	3
65	4
66	4
67	5
68	7
69	7
70	5
71	5
72	7
73	8
74	9
75	12
76	14
77	11
78	6
79	5
80	7
81	8
82	9
83	12
84	14
85	12
86	10
87	12
88	15
89	17
90	21
91	26