A228337 - cp's OEIS frontend

A228337 Irregular triangle read by rows: the W-transformation of the Catalan triangle A033184.

n	a(n)
0	1
1	2
2	4
3	1
4	10
5	4
6	20
7	21
8	1
9	56
10	70
11	6
12	140
13	238
14	50
15	1
16	420
17	792
18	210
19	8
20	1176
21	2604
22	990
23	91
24	1
25	3696
26	8778
27	3850
28	462
29	10
30	11088
31	29106
32	15675
33	2772
34	144
35	1
36	36036
37	99528
38	59202
39	12376
40	858
41	12
42	113256
43	335049
44	228085
45	60060
46	6240
47	209
48	1

[1, 2, 4, 1, 10, 4, 20, 21, 1, 56, 70, 6, 140, 238, 50, 1, 420, 792, 210, 8, 1176, 2604, 990, 91, 1, 3696, 8778, 3850, 462, 10, 11088, 29106, 15675, 2772, 144, 1, 36036, 99528, 59202, 12376, 858, 12, 113256, 335049, 228085, 60060, 6240, 209, 1]

cp's OEIS Frontend

A228337 Irregular triangle read by rows: the W-transformation of the Catalan triangle A033184.

Table of values

List of values