A130849 - cp's OEIS frontend

A130849 a(n) is half the sum of the terms in the n-th antidiagonal of the table A130836.

n	a(n)
1	0
2	1
3	1
4	4
5	2
6	7
7	4
8	9
9	8
10	15
11	6
12	19
13	13
14	16
15	13
16	28
17	15
18	32
19	17
20	28
21	27
22	40
23	16
24	41
25	34
26	39
27	30
28	55
29	28
30	59
31	34
32	53
33	50
34	59
35	32
36	75
37	57
38	64
39	41
40	84
41	47
42	88
43	55
44	66
45	72
46	97
47	42
48	97
49	71
50	90
51	70
52	113
53	65
54	104
55	67
56	104
57	97
58	128
59	56
60	133
61	103
62	102
63	82
64	129
65	89
66	150
67	99
68	130
69	100

[0, 1, 1, 4, 2, 7, 4, 9, 8, 15, 6, 19, 13, 16, 13, 28, 15, 32, 17, 28, 27, 40, 16, 41, 34, 39, 30, 55, 28, 59, 34, 53, 50, 59, 32, 75, 57, 64, 41, 84, 47, 88, 55, 66, 72, 97, 42, 97, 71, 90, 70, 113, 65, 104, 67, 104, 97, 128, 56, 133, 103, 102, 82, 129, 89, 150, 99, 130, 100]

cp's OEIS Frontend

A130849 a(n) is half the sum of the terms in the n-th antidiagonal of the table A130836.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	4
5	2
6	7
7	4
8	9
9	8
10	15
11	6
12	19
13	13
14	16
15	13
16	28
17	15
18	32
19	17
20	28
21	27
22	40
23	16
24	41
25	34
26	39
27	30
28	55
29	28
30	59
31	34
32	53
33	50
34	59
35	32
36	75
37	57
38	64
39	41
40	84
41	47
42	88
43	55
44	66
45	72
46	97
47	42
48	97
49	71
50	90
51	70
52	113
53	65
54	104
55	67
56	104
57	97
58	128
59	56
60	133
61	103
62	102
63	82
64	129
65	89
66	150
67	99
68	130
69	100

n	a(n)
1	0
2	1
3	1
4	4
5	2
6	7
7	4
8	9
9	8
10	15
11	6
12	19
13	13
14	16
15	13
16	28
17	15
18	32
19	17
20	28
21	27
22	40
23	16
24	41
25	34
26	39
27	30
28	55
29	28
30	59
31	34
32	53
33	50
34	59
35	32
36	75
37	57
38	64
39	41
40	84
41	47
42	88
43	55
44	66
45	72
46	97
47	42
48	97
49	71
50	90
51	70
52	113
53	65
54	104
55	67
56	104
57	97
58	128
59	56
60	133
61	103
62	102
63	82
64	129
65	89
66	150
67	99
68	130
69	100

n	a(n)
1	0
2	1
3	1
4	4
5	2
6	7
7	4
8	9
9	8
10	15
11	6
12	19
13	13
14	16
15	13
16	28
17	15
18	32
19	17
20	28
21	27
22	40
23	16
24	41
25	34
26	39
27	30
28	55
29	28
30	59
31	34
32	53
33	50
34	59
35	32
36	75
37	57
38	64
39	41
40	84
41	47
42	88
43	55
44	66
45	72
46	97
47	42
48	97
49	71
50	90
51	70
52	113
53	65
54	104
55	67
56	104
57	97
58	128
59	56
60	133
61	103
62	102
63	82
64	129
65	89
66	150
67	99
68	130
69	100