A156628 - cp's OEIS frontend

A156628 Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions 0 and {(m+1)*(m+2)/2-2, m>0} and then taking partial sums, starting with all 1's in row 0.

n	a(n)
0	1
1	1
2	1
3	3
4	2
5	1
6	13
7	7
8	3
9	1
10	71
11	33
12	13
13	4
14	1
15	461
16	191
17	71
18	20
19	5
20	1
21	3447
22	1297
23	461
24	120
25	28
26	6
27	1
28	29093
29	10063
30	3447
31	836
32	181
33	38
34	7
35	1
36	273343
37	87669
38	29093
39	6616
40	1333
41	270
42	49
43	8
44	1
45	2829325
46	847015
47	273343
48	58576
49	11029
50	2150
51	375
52	61
53	9
54	1

[1, 1, 1, 3, 2, 1, 13, 7, 3, 1, 71, 33, 13, 4, 1, 461, 191, 71, 20, 5, 1, 3447, 1297, 461, 120, 28, 6, 1, 29093, 10063, 3447, 836, 181, 38, 7, 1, 273343, 87669, 29093, 6616, 1333, 270, 49, 8, 1, 2829325, 847015, 273343, 58576, 11029, 2150, 375, 61, 9, 1]

cp's OEIS Frontend

A156628 Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions 0 and {(m+1)*(m+2)/2-2, m>0} and then taking partial sums, starting with all 1's in row 0.

Table of values

List of values