A139382 - cp's OEIS frontend

A139382 Triangle read by rows, T(n,k) = (2^k-1) * T(n-1,k) + T(n-1,k-1).

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	1
7	1
8	13
9	11
10	1
11	1
12	40
13	90
14	26
15	1
16	1
17	121
18	670
19	480
20	57
21	1
22	1
23	364
24	4811
25	7870
26	2247
27	120
28	1
29	1
30	1093
31	34041
32	122861
33	77527
34	9807
35	247
36	1
37	1
38	3280
39	239380
40	1876956
41	2526198
42	695368
43	41176
44	502
45	1
46	1
47	9841
48	1678940
49	28393720
50	80189094
51	46334382
52	5924720
53	169186
54	1013
55	1

[1, 1, 1, 1, 4, 1, 1, 13, 11, 1, 1, 40, 90, 26, 1, 1, 121, 670, 480, 57, 1, 1, 364, 4811, 7870, 2247, 120, 1, 1, 1093, 34041, 122861, 77527, 9807, 247, 1, 1, 3280, 239380, 1876956, 2526198, 695368, 41176, 502, 1, 1, 9841, 1678940, 28393720, 80189094, 46334382, 5924720, 169186, 1013, 1]

cp's OEIS Frontend

A139382 Triangle read by rows, T(n,k) = (2^k-1) * T(n-1,k) + T(n-1,k-1).

Table of values

List of values