A128627 - cp's OEIS frontend

A128627 Triangle read by rows. Convolution triangle based on A002865.

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	2
12	2
13	3
14	0
15	1
16	2
17	5
18	3
19	4
20	0
21	1
22	4
23	6
24	9
25	4
26	5
27	0
28	1
29	4
30	13
31	12
32	14
33	5
34	6
35	0
36	1
37	7
38	16
39	28
40	20
41	20
42	6
43	7
44	0
45	1
46	8
47	30
48	39
49	50
50	30
51	27
52	7
53	8
54	0
55	1
56	12
57	40
58	78
59	76
60	80
61	42
62	35
63	8
64	9
65	0
66	1
67	14
68	66
69	115
70	161
71	130
72	119
73	56
74	44
75	9
76	10
77	0
78	1

[1, 0, 1, 1, 0, 1, 1, 2, 0, 1, 2, 2, 3, 0, 1, 2, 5, 3, 4, 0, 1, 4, 6, 9, 4, 5, 0, 1, 4, 13, 12, 14, 5, 6, 0, 1, 7, 16, 28, 20, 20, 6, 7, 0, 1, 8, 30, 39, 50, 30, 27, 7, 8, 0, 1, 12, 40, 78, 76, 80, 42, 35, 8, 9, 0, 1, 14, 66, 115, 161, 130, 119, 56, 44, 9, 10, 0, 1]

cp's OEIS Frontend

A128627 Triangle read by rows. Convolution triangle based on A002865.

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	2
12	2
13	3
14	0
15	1
16	2
17	5
18	3
19	4
20	0
21	1
22	4
23	6
24	9
25	4
26	5
27	0
28	1
29	4
30	13
31	12
32	14
33	5
34	6
35	0
36	1
37	7
38	16
39	28
40	20
41	20
42	6
43	7
44	0
45	1
46	8
47	30
48	39
49	50
50	30
51	27
52	7
53	8
54	0
55	1
56	12
57	40
58	78
59	76
60	80
61	42
62	35
63	8
64	9
65	0
66	1
67	14
68	66
69	115
70	161
71	130
72	119
73	56
74	44
75	9
76	10
77	0
78	1

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	2
12	2
13	3
14	0
15	1
16	2
17	5
18	3
19	4
20	0
21	1
22	4
23	6
24	9
25	4
26	5
27	0
28	1
29	4
30	13
31	12
32	14
33	5
34	6
35	0
36	1
37	7
38	16
39	28
40	20
41	20
42	6
43	7
44	0
45	1
46	8
47	30
48	39
49	50
50	30
51	27
52	7
53	8
54	0
55	1
56	12
57	40
58	78
59	76
60	80
61	42
62	35
63	8
64	9
65	0
66	1
67	14
68	66
69	115
70	161
71	130
72	119
73	56
74	44
75	9
76	10
77	0
78	1

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	2
12	2
13	3
14	0
15	1
16	2
17	5
18	3
19	4
20	0
21	1
22	4
23	6
24	9
25	4
26	5
27	0
28	1
29	4
30	13
31	12
32	14
33	5
34	6
35	0
36	1
37	7
38	16
39	28
40	20
41	20
42	6
43	7
44	0
45	1
46	8
47	30
48	39
49	50
50	30
51	27
52	7
53	8
54	0
55	1
56	12
57	40
58	78
59	76
60	80
61	42
62	35
63	8
64	9
65	0
66	1
67	14
68	66
69	115
70	161
71	130
72	119
73	56
74	44
75	9
76	10
77	0
78	1