A156289 - cp's OEIS frontend

A156289 Triangle read by rows: T(n,k) is the number of end rhyme patterns of a poem of an even number of lines (2n) with 1<=k<=n evenly rhymed sounds.

n	a(n)
1	1
2	1
3	3
4	1
5	15
6	15
7	1
8	63
9	210
10	105
11	1
12	255
13	2205
14	3150
15	945
16	1
17	1023
18	21120
19	65835
20	51975
21	10395
22	1
23	4095
24	195195
25	1201200
26	1891890
27	945945
28	135135
29	1
30	16383
31	1777230
32	20585565
33	58108050
34	54864810
35	18918900
36	2027025
37	1
38	65535
39	16076985

[1, 1, 3, 1, 15, 15, 1, 63, 210, 105, 1, 255, 2205, 3150, 945, 1, 1023, 21120, 65835, 51975, 10395, 1, 4095, 195195, 1201200, 1891890, 945945, 135135, 1, 16383, 1777230, 20585565, 58108050, 54864810, 18918900, 2027025, 1, 65535, 16076985]

cp's OEIS Frontend

A156289 Triangle read by rows: T(n,k) is the number of end rhyme patterns of a poem of an even number of lines (2n) with 1<=k<=n evenly rhymed sounds.

Table of values

List of values