A130521 - cp's OEIS frontend

A130521 Triangle, read by rows, where T(n,k) = T(n,k-1) + T(n-1,k-2) for n>=k>=2, with T(n+1,1) = T(n+1,0) = T(n,n) and T(0,0) = 1 for n>=0.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	3
9	4
10	4
11	4
12	6
13	8
14	11
15	11
16	11
17	15
18	19
19	25
20	33
21	33
22	33
23	44
24	55
25	70
26	89
27	114
28	114
29	114
30	147
31	180
32	224
33	279
34	349
35	438
36	438
37	438
38	552
39	666
40	813
41	993
42	1217
43	1496
44	1845
45	1845
46	1845
47	2283
48	2721
49	3273
50	3939
51	4752
52	5745
53	6962
54	8458
55	8458
56	8458
57	10303

[1, 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 4, 6, 8, 11, 11, 11, 15, 19, 25, 33, 33, 33, 44, 55, 70, 89, 114, 114, 114, 147, 180, 224, 279, 349, 438, 438, 438, 552, 666, 813, 993, 1217, 1496, 1845, 1845, 1845, 2283, 2721, 3273, 3939, 4752, 5745, 6962, 8458, 8458, 8458, 10303]

cp's OEIS Frontend

A130521 Triangle, read by rows, where T(n,k) = T(n,k-1) + T(n-1,k-2) for n>=k>=2, with T(n+1,1) = T(n+1,0) = T(n,n) and T(0,0) = 1 for n>=0.

Table of values

List of values