A107870 - cp's OEIS frontend

A107870 Triangle, read by rows, where T(n,k) = C(n(n-1)/2-k(k-1)/2+n-k+2, n-k).

n	a(n)
0	1
1	3
2	1
3	10
4	4
5	1
6	56
7	21
8	5
9	1
10	495
11	165
12	36
13	6
14	1
15	6188
16	1820
17	364
18	55
19	7
20	1
21	100947
22	26334
23	4845
24	680
25	78
26	8
27	1
28	2035800
29	475020
30	80730
31	10626
32	1140
33	105
34	9
35	1
36	48903492
37	10295472
38	1623160
39	201376
40	20475
41	1771
42	136
43	10
44	1
45	1362649145
46	260932815

[1, 3, 1, 10, 4, 1, 56, 21, 5, 1, 495, 165, 36, 6, 1, 6188, 1820, 364, 55, 7, 1, 100947, 26334, 4845, 680, 78, 8, 1, 2035800, 475020, 80730, 10626, 1140, 105, 9, 1, 48903492, 10295472, 1623160, 201376, 20475, 1771, 136, 10, 1, 1362649145, 260932815]

cp's OEIS Frontend

A107870 Triangle, read by rows, where T(n,k) = C(n(n-1)/2-k(k-1)/2+n-k+2, n-k).

Table of values

List of values

cp's OEIS Frontend

A107870 Triangle, read by rows, where T(n,k) = C(n*(n-1)/2-k*(k-1)/2+n-k+2, n-k).

Table of values

List of values

A107870 Triangle, read by rows, where T(n,k) = C(n(n-1)/2-k(k-1)/2+n-k+2, n-k).