A137573 - cp's OEIS frontend

A137573 The first lower diagonal in square array A137570; equals the convolution of the main diagonal A137571 with the Catalan numbers (A000108) and with the square of A002293.

n	a(n)
0	1
1	5
2	29
3	186
4	1281
5	9294
6	70109
7	544833
8	4333381
9	35108351
10	288738813
11	2404256945
12	20228988678
13	171716799066
14	1468804301441
15	12647321103329
16	109538312419238
17	953622158606749
18	8340394595266367
19	73247287493299642

[1, 5, 29, 186, 1281, 9294, 70109, 544833, 4333381, 35108351, 288738813, 2404256945, 20228988678, 171716799066, 1468804301441, 12647321103329, 109538312419238, 953622158606749, 8340394595266367, 73247287493299642]

cp's OEIS Frontend

A137573 The first lower diagonal in square array A137570; equals the convolution of the main diagonal A137571 with the Catalan numbers (A000108) and with the square of A002293.

Table of values

List of values