A102756 - cp's OEIS frontend

A102756 Triangle T(n,k), 0<=k<=n, read by rows defined by: T(n,k) = T(n-1,k-1) + 2*T(n-1,k) + T(n-2,k-2) - T(n-2,k), T(0,0) = 1, T(n,k) = 0 if k < 0 or if n < k.

n	a(n)
0	1
1	2
2	1
3	3
4	4
5	2
6	4
7	10
8	10
9	3
10	5
11	20
12	31
13	20
14	5
15	6
16	35
17	76
18	78
19	40
20	8
21	7
22	56
23	161
24	232
25	184
26	76
27	13
28	8
29	84
30	308
31	582
32	636
33	406
34	142
35	21
36	9
37	120
38	546
39	1296
40	1831
41	1604
42	861
43	260
44	34
45	10
46	165
47	912
48	2640
49	4630
50	5215
51	3820
52	1766
53	470
54	55

[1, 2, 1, 3, 4, 2, 4, 10, 10, 3, 5, 20, 31, 20, 5, 6, 35, 76, 78, 40, 8, 7, 56, 161, 232, 184, 76, 13, 8, 84, 308, 582, 636, 406, 142, 21, 9, 120, 546, 1296, 1831, 1604, 861, 260, 34, 10, 165, 912, 2640, 4630, 5215, 3820, 1766, 470, 55]

cp's OEIS Frontend

A102756 Triangle T(n,k), 0<=k<=n, read by rows defined by: T(n,k) = T(n-1,k-1) + 2*T(n-1,k) + T(n-2,k-2) - T(n-2,k), T(0,0) = 1, T(n,k) = 0 if k < 0 or if n < k.

Table of values

List of values