A154227 - cp's OEIS frontend

A154227 Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + ((n+1)(n+2)/2)T(n-2, k-1), read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	8
5	1
6	1
7	19
8	19
9	1
10	1
11	35
12	158
13	35
14	1
15	1
16	57
17	592
18	592
19	57
20	1
21	1
22	86
23	1629
24	5608
25	1629
26	86
27	1
28	1
29	123
30	3767
31	28549
32	28549
33	3767
34	123
35	1
36	1
37	169
38	7760
39	105621
40	309458
41	105621
42	7760
43	169
44	1
45	1
46	225
47	14694
48	320566
49	1985274
50	1985274
51	320566
52	14694
53	225
54	1

[1, 1, 1, 1, 8, 1, 1, 19, 19, 1, 1, 35, 158, 35, 1, 1, 57, 592, 592, 57, 1, 1, 86, 1629, 5608, 1629, 86, 1, 1, 123, 3767, 28549, 28549, 3767, 123, 1, 1, 169, 7760, 105621, 309458, 105621, 7760, 169, 1, 1, 225, 14694, 320566, 1985274, 1985274, 320566, 14694, 225, 1]

cp's OEIS Frontend

A154227 Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + ((n+1)(n+2)/2)T(n-2, k-1), read by rows.

Table of values

List of values

cp's OEIS Frontend

A154227 Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + ((n+1)*(n+2)/2)*T(n-2, k-1), read by rows.

Table of values

List of values

A154227 Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + ((n+1)(n+2)/2)T(n-2, k-1), read by rows.