A202845 - cp's OEIS frontend

A202845 Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of odd length (n>=0, k>=0).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	3
7	2
8	6
9	4
10	10
11	3
12	7
13	16
14	14
15	11
16	30
17	40
18	1
19	17
20	62
21	90
22	16
23	28
24	126
25	184
26	85
27	49
28	241
29	384
30	295
31	9
32	87
33	444
34	839
35	808
36	105
37	152
38	820
39	1845
40	1960
41	594
42	2
43	262
44	1547
45	3938
46	4581
47	2331
48	76
49	453
50	2957
51	8134
52	10731
53	7326
54	771
55	794
56	5636
57	16529
58	25110
59	20204
60	4529
61	30

[1, 1, 1, 1, 1, 1, 3, 2, 6, 4, 10, 3, 7, 16, 14, 11, 30, 40, 1, 17, 62, 90, 16, 28, 126, 184, 85, 49, 241, 384, 295, 9, 87, 444, 839, 808, 105, 152, 820, 1845, 1960, 594, 2, 262, 1547, 3938, 4581, 2331, 76, 453, 2957, 8134, 10731, 7326, 771, 794, 5636, 16529, 25110, 20204, 4529, 30]

cp's OEIS Frontend

A202845 Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of odd length (n>=0, k>=0).

Table of values

List of values