A151688 - cp's OEIS frontend

A151688 G.f.: Product_{n>=0} (1 + x^(2^n-1) + 2*x^(2^n)).

n	a(n)
0	2
1	4
2	6
3	6
4	8
5	14
6	16
7	10
8	8
9	14
10	18
11	20
12	30
13	44
14	40
15	18
16	8
17	14
18	18
19	20
20	30
21	44
22	42
23	28
24	30
25	46
26	56
27	70
28	104
29	128
30	96
31	34
32	8
33	14
34	18
35	20
36	30
37	44
38	42
39	28
40	30
41	46
42	56
43	70
44	104
45	128
46	98
47	44
48	30
49	46
50	56
51	70
52	104
53	130
54	112
55	86
56	106
57	148
58	182
59	244
60	336
61	352
62	224
63	66
64	8
65	14
66	18
67	20
68	30
69	44

[2, 4, 6, 6, 8, 14, 16, 10, 8, 14, 18, 20, 30, 44, 40, 18, 8, 14, 18, 20, 30, 44, 42, 28, 30, 46, 56, 70, 104, 128, 96, 34, 8, 14, 18, 20, 30, 44, 42, 28, 30, 46, 56, 70, 104, 128, 98, 44, 30, 46, 56, 70, 104, 130, 112, 86, 106, 148, 182, 244, 336, 352, 224, 66, 8, 14, 18, 20, 30, 44]

cp's OEIS Frontend

A151688 G.f.: Product_{n>=0} (1 + x^(2^n-1) + 2*x^(2^n)).

Table of values

List of values

n	a(n)
0	2
1	4
2	6
3	6
4	8
5	14
6	16
7	10
8	8
9	14
10	18
11	20
12	30
13	44
14	40
15	18
16	8
17	14
18	18
19	20
20	30
21	44
22	42
23	28
24	30
25	46
26	56
27	70
28	104
29	128
30	96
31	34
32	8
33	14
34	18
35	20
36	30
37	44
38	42
39	28
40	30
41	46
42	56
43	70
44	104
45	128
46	98
47	44
48	30
49	46
50	56
51	70
52	104
53	130
54	112
55	86
56	106
57	148
58	182
59	244
60	336
61	352
62	224
63	66
64	8
65	14
66	18
67	20
68	30
69	44

n	a(n)
0	2
1	4
2	6
3	6
4	8
5	14
6	16
7	10
8	8
9	14
10	18
11	20
12	30
13	44
14	40
15	18
16	8
17	14
18	18
19	20
20	30
21	44
22	42
23	28
24	30
25	46
26	56
27	70
28	104
29	128
30	96
31	34
32	8
33	14
34	18
35	20
36	30
37	44
38	42
39	28
40	30
41	46
42	56
43	70
44	104
45	128
46	98
47	44
48	30
49	46
50	56
51	70
52	104
53	130
54	112
55	86
56	106
57	148
58	182
59	244
60	336
61	352
62	224
63	66
64	8
65	14
66	18
67	20
68	30
69	44

n	a(n)
0	2
1	4
2	6
3	6
4	8
5	14
6	16
7	10
8	8
9	14
10	18
11	20
12	30
13	44
14	40
15	18
16	8
17	14
18	18
19	20
20	30
21	44
22	42
23	28
24	30
25	46
26	56
27	70
28	104
29	128
30	96
31	34
32	8
33	14
34	18
35	20
36	30
37	44
38	42
39	28
40	30
41	46
42	56
43	70
44	104
45	128
46	98
47	44
48	30
49	46
50	56
51	70
52	104
53	130
54	112
55	86
56	106
57	148
58	182
59	244
60	336
61	352
62	224
63	66
64	8
65	14
66	18
67	20
68	30
69	44