A057884 - cp's OEIS frontend

A057884 A square array based on tetrahedral numbers (A000292) with each term being the sum of 2 consecutive terms in the previous row.

n	a(n)
0	1
1	0
2	1
3	4
4	1
5	1
6	0
7	4
8	2
9	1
10	10
11	4
12	5
13	3
14	1
15	0
16	10
17	8
18	7
19	4
20	1
21	20
22	10
23	14
24	13
25	10
26	5
27	1
28	0
29	20
30	20
31	22
32	20
33	14
34	6
35	1
36	35
37	20
38	30
39	34
40	35
41	30
42	19
43	7
44	1
45	0
46	35
47	40
48	50
49	56
50	55
51	44
52	25
53	8
54	1
55	56
56	35
57	55
58	70
59	84
60	91
61	85
62	63
63	32
64	9
65	1
66	0
67	56
68	70
69	95
70	120
71	140
72	146
73	129
74	88
75	40
76	10
77	1

[1, 0, 1, 4, 1, 1, 0, 4, 2, 1, 10, 4, 5, 3, 1, 0, 10, 8, 7, 4, 1, 20, 10, 14, 13, 10, 5, 1, 0, 20, 20, 22, 20, 14, 6, 1, 35, 20, 30, 34, 35, 30, 19, 7, 1, 0, 35, 40, 50, 56, 55, 44, 25, 8, 1, 56, 35, 55, 70, 84, 91, 85, 63, 32, 9, 1, 0, 56, 70, 95, 120, 140, 146, 129, 88, 40, 10, 1]

cp's OEIS Frontend

A057884 A square array based on tetrahedral numbers (A000292) with each term being the sum of 2 consecutive terms in the previous row.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	4
4	1
5	1
6	0
7	4
8	2
9	1
10	10
11	4
12	5
13	3
14	1
15	0
16	10
17	8
18	7
19	4
20	1
21	20
22	10
23	14
24	13
25	10
26	5
27	1
28	0
29	20
30	20
31	22
32	20
33	14
34	6
35	1
36	35
37	20
38	30
39	34
40	35
41	30
42	19
43	7
44	1
45	0
46	35
47	40
48	50
49	56
50	55
51	44
52	25
53	8
54	1
55	56
56	35
57	55
58	70
59	84
60	91
61	85
62	63
63	32
64	9
65	1
66	0
67	56
68	70
69	95
70	120
71	140
72	146
73	129
74	88
75	40
76	10
77	1

n	a(n)
0	1
1	0
2	1
3	4
4	1
5	1
6	0
7	4
8	2
9	1
10	10
11	4
12	5
13	3
14	1
15	0
16	10
17	8
18	7
19	4
20	1
21	20
22	10
23	14
24	13
25	10
26	5
27	1
28	0
29	20
30	20
31	22
32	20
33	14
34	6
35	1
36	35
37	20
38	30
39	34
40	35
41	30
42	19
43	7
44	1
45	0
46	35
47	40
48	50
49	56
50	55
51	44
52	25
53	8
54	1
55	56
56	35
57	55
58	70
59	84
60	91
61	85
62	63
63	32
64	9
65	1
66	0
67	56
68	70
69	95
70	120
71	140
72	146
73	129
74	88
75	40
76	10
77	1

n	a(n)
0	1
1	0
2	1
3	4
4	1
5	1
6	0
7	4
8	2
9	1
10	10
11	4
12	5
13	3
14	1
15	0
16	10
17	8
18	7
19	4
20	1
21	20
22	10
23	14
24	13
25	10
26	5
27	1
28	0
29	20
30	20
31	22
32	20
33	14
34	6
35	1
36	35
37	20
38	30
39	34
40	35
41	30
42	19
43	7
44	1
45	0
46	35
47	40
48	50
49	56
50	55
51	44
52	25
53	8
54	1
55	56
56	35
57	55
58	70
59	84
60	91
61	85
62	63
63	32
64	9
65	1
66	0
67	56
68	70
69	95
70	120
71	140
72	146
73	129
74	88
75	40
76	10
77	1