A129961 - cp's OEIS frontend

A129961 Main diagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1)+T(j,k-1) for 2 <= k <= j.

n	a(n)
1	1
2	2
3	4
4	8
5	15
6	26
7	42
8	64
9	94
10	140
11	232
12	464
13	1092
14	2744
15	6840
16	16384
17	37384
18	81296
19	169120
20	338240
21	654192
22	1232288
23	2280864
24	4194304
25	7761376
26	14635712
27	28384384
28	56768768
29	116566080
30	243472256
31	511907712
32	1073741824
33	2232713344

[1, 2, 4, 8, 15, 26, 42, 64, 94, 140, 232, 464, 1092, 2744, 6840, 16384, 37384, 81296, 169120, 338240, 654192, 1232288, 2280864, 4194304, 7761376, 14635712, 28384384, 56768768, 116566080, 243472256, 511907712, 1073741824, 2232713344]

cp's OEIS Frontend

A129961 Main diagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1)+T(j,k-1) for 2 <= k <= j.

Table of values

List of values