A202838 - cp's OEIS frontend

A202838 Triangle read by rows: T(n,k) is the number of secondary structures of size n (n>=0) having k stacks of length 1 (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	8
13	15
14	14
15	14
16	27
17	40
18	1
19	23
20	56
21	90
22	16
23	38
24	122
25	178
26	85
27	65
28	253
29	356
30	295
31	9
32	117
33	494
34	762
35	805
36	105
37	214
38	938
39	1713
40	1912
41	594
42	2
43	391
44	1783
45	3828
46	4326
47	2331
48	76
49	708
50	3456
51	8265
52	9882
53	7290
54	771
55	1278
56	6793
57	17309
58	23109
59	19784
60	4529
61	30

[1, 1, 1, 1, 1, 1, 3, 2, 6, 4, 10, 3, 8, 15, 14, 14, 27, 40, 1, 23, 56, 90, 16, 38, 122, 178, 85, 65, 253, 356, 295, 9, 117, 494, 762, 805, 105, 214, 938, 1713, 1912, 594, 2, 391, 1783, 3828, 4326, 2331, 76, 708, 3456, 8265, 9882, 7290, 771, 1278, 6793, 17309, 23109, 19784, 4529, 30]

cp's OEIS Frontend

A202838 Triangle read by rows: T(n,k) is the number of secondary structures of size n (n>=0) having k stacks of length 1 (k>=0).

Table of values

List of values