A261421 - cp's OEIS frontend

A261421 Numerators of coefficients in Taylor series expansion of sqrt(m(x)) where m(x) is g.f. for Motzkin numbers A001006.

n	a(n)
0	1
1	1
2	7
3	25
4	427
5	1911
6	18051
7	87945
8	3518515
9	17943211
10	185961113
11	976288495
12	20727407743
13	111039591475
14	1199227922235
15	6520801221225
16	570761912807235
17	3139190488028595
18	34696316039725725
19	192564553799569875
20	4291438629174301605
21	23993043241870766505
22	269139354637637831685

[1, 1, 7, 25, 427, 1911, 18051, 87945, 3518515, 17943211, 185961113, 976288495, 20727407743, 111039591475, 1199227922235, 6520801221225, 570761912807235, 3139190488028595, 34696316039725725, 192564553799569875, 4291438629174301605, 23993043241870766505, 269139354637637831685]

cp's OEIS Frontend

A261421 Numerators of coefficients in Taylor series expansion of sqrt(m(x)) where m(x) is g.f. for Motzkin numbers A001006.

Table of values

List of values