A154921 - cp's OEIS frontend

A154921 Triangle read by rows, T(n, k) = binomial(n, k) * Sum_{j=0..n-k} E(n-k, j)*2^j, where E(n, k) are the Eulerian numbers A173018(n, k), for 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	3
4	2
5	1
6	13
7	9
8	3
9	1
10	75
11	52
12	18
13	4
14	1
15	541
16	375
17	130
18	30
19	5
20	1
21	4683
22	3246
23	1125
24	260
25	45
26	6
27	1
28	47293
29	32781
30	11361
31	2625
32	455
33	63
34	7
35	1
36	545835
37	378344
38	131124
39	30296
40	5250
41	728
42	84
43	8
44	1
45	7087261
46	4912515
47	1702548
48	393372
49	68166
50	9450
51	1092
52	108
53	9
54	1

[1, 1, 1, 3, 2, 1, 13, 9, 3, 1, 75, 52, 18, 4, 1, 541, 375, 130, 30, 5, 1, 4683, 3246, 1125, 260, 45, 6, 1, 47293, 32781, 11361, 2625, 455, 63, 7, 1, 545835, 378344, 131124, 30296, 5250, 728, 84, 8, 1, 7087261, 4912515, 1702548, 393372, 68166, 9450, 1092, 108, 9, 1]

cp's OEIS Frontend

A154921 Triangle read by rows, T(n, k) = binomial(n, k) * Sum_{j=0..n-k} E(n-k, j)*2^j, where E(n, k) are the Eulerian numbers A173018(n, k), for 0 <= k <= n.

Table of values

List of values