A327629 - cp's OEIS frontend

A327629 Expansion of Sum_{k>=1} x^(k(k + 1)/2) / (1 - x^(k(k + 1)/2))^2.

n	a(n)
1	1
2	2
3	4
4	4
5	5
6	9
7	7
8	8
9	12
10	11
11	11
12	18
13	13
14	14
15	21
16	16
17	17
18	27
19	19
20	22
21	29
22	22
23	23
24	36
25	25
26	26
27	36
28	29
29	29
30	50
31	31
32	32
33	44
34	34
35	35
36	55
37	37
38	38
39	52
40	44
41	41
42	65
43	43
44	44
45	64
46	46
47	47
48	72
49	49
50	55
51	68
52	52
53	53
54	81
55	56
56	58
57	76
58	58
59	59
60	100
61	61
62	62
63	87
64	64
65	65
66	100
67	67
68	68
69	92
70	77

[1, 2, 4, 4, 5, 9, 7, 8, 12, 11, 11, 18, 13, 14, 21, 16, 17, 27, 19, 22, 29, 22, 23, 36, 25, 26, 36, 29, 29, 50, 31, 32, 44, 34, 35, 55, 37, 38, 52, 44, 41, 65, 43, 44, 64, 46, 47, 72, 49, 55, 68, 52, 53, 81, 56, 58, 76, 58, 59, 100, 61, 62, 87, 64, 65, 100, 67, 68, 92, 77]

cp's OEIS Frontend

A327629 Expansion of Sum_{k>=1} x^(k(k + 1)/2) / (1 - x^(k(k + 1)/2))^2.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	4
5	5
6	9
7	7
8	8
9	12
10	11
11	11
12	18
13	13
14	14
15	21
16	16
17	17
18	27
19	19
20	22
21	29
22	22
23	23
24	36
25	25
26	26
27	36
28	29
29	29
30	50
31	31
32	32
33	44
34	34
35	35
36	55
37	37
38	38
39	52
40	44
41	41
42	65
43	43
44	44
45	64
46	46
47	47
48	72
49	49
50	55
51	68
52	52
53	53
54	81
55	56
56	58
57	76
58	58
59	59
60	100
61	61
62	62
63	87
64	64
65	65
66	100
67	67
68	68
69	92
70	77

n	a(n)
1	1
2	2
3	4
4	4
5	5
6	9
7	7
8	8
9	12
10	11
11	11
12	18
13	13
14	14
15	21
16	16
17	17
18	27
19	19
20	22
21	29
22	22
23	23
24	36
25	25
26	26
27	36
28	29
29	29
30	50
31	31
32	32
33	44
34	34
35	35
36	55
37	37
38	38
39	52
40	44
41	41
42	65
43	43
44	44
45	64
46	46
47	47
48	72
49	49
50	55
51	68
52	52
53	53
54	81
55	56
56	58
57	76
58	58
59	59
60	100
61	61
62	62
63	87
64	64
65	65
66	100
67	67
68	68
69	92
70	77

cp's OEIS Frontend

A327629 Expansion of Sum_{k>=1} x^(k*(k + 1)/2) / (1 - x^(k*(k + 1)/2))^2.

Table of values

List of values

A327629 Expansion of Sum_{k>=1} x^(k(k + 1)/2) / (1 - x^(k(k + 1)/2))^2.

n	a(n)
1	1
2	2
3	4
4	4
5	5
6	9
7	7
8	8
9	12
10	11
11	11
12	18
13	13
14	14
15	21
16	16
17	17
18	27
19	19
20	22
21	29
22	22
23	23
24	36
25	25
26	26
27	36
28	29
29	29
30	50
31	31
32	32
33	44
34	34
35	35
36	55
37	37
38	38
39	52
40	44
41	41
42	65
43	43
44	44
45	64
46	46
47	47
48	72
49	49
50	55
51	68
52	52
53	53
54	81
55	56
56	58
57	76
58	58
59	59
60	100
61	61
62	62
63	87
64	64
65	65
66	100
67	67
68	68
69	92
70	77