A125781 - cp's OEIS frontend

A125781 Rectangular table, read by antidiagonals, defined by the following rule: start with all 1's in row zero; from then on, row n+1 equals the partial sums of row n excluding terms in columns k = m*(m+1)/2 - 2 (m>=2).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	4
8	3
9	1
10	1
11	9
12	8
13	4
14	1
15	1
16	24
17	23
18	14
19	5
20	1
21	1
22	77
23	76
24	52
25	21
26	6
27	1
28	1
29	295
30	294
31	217
32	91
33	29
34	7
35	1
36	1
37	1329
38	1328
39	1033
40	433
41	141
42	39
43	8
44	1
45	1
46	6934
47	6933
48	5604
49	2307
50	739
51	216
52	50
53	9
54	1
55	1
56	41351
57	41350
58	34416
59	13804
60	4276
61	1274
62	306
63	62
64	10
65	1
66	1

[1, 1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 9, 8, 4, 1, 1, 24, 23, 14, 5, 1, 1, 77, 76, 52, 21, 6, 1, 1, 295, 294, 217, 91, 29, 7, 1, 1, 1329, 1328, 1033, 433, 141, 39, 8, 1, 1, 6934, 6933, 5604, 2307, 739, 216, 50, 9, 1, 1, 41351, 41350, 34416, 13804, 4276, 1274, 306, 62, 10, 1, 1]

cp's OEIS Frontend

A125781 Rectangular table, read by antidiagonals, defined by the following rule: start with all 1's in row zero; from then on, row n+1 equals the partial sums of row n excluding terms in columns k = m*(m+1)/2 - 2 (m>=2).

Table of values

List of values