A295132 - cp's OEIS frontend

A295132 a(n) = (2/n)Sum_{k=1..n} (2k+1)M(k)^2 where M(k) is the Motzkin number A001006(k).

n	a(n)
1	6
2	23
3	90
4	432
5	2286
6	13176
7	80418
8	513764
9	3400518
10	23167311
11	161640554
12	1150633512
13	8332048638
14	61232315553
15	455830692210
16	3432015694314
17	26101221114582
18	200295455169015
19	1549473966622602
20	12074304397434552
21	94713783502786686
22	747454269790900728

[6, 23, 90, 432, 2286, 13176, 80418, 513764, 3400518, 23167311, 161640554, 1150633512, 8332048638, 61232315553, 455830692210, 3432015694314, 26101221114582, 200295455169015, 1549473966622602, 12074304397434552, 94713783502786686, 747454269790900728]

cp's OEIS Frontend

A295132 a(n) = (2/n)Sum_{k=1..n} (2k+1)M(k)^2 where M(k) is the Motzkin number A001006(k).

Table of values

List of values

cp's OEIS Frontend

A295132 a(n) = (2/n)*Sum_{k=1..n} (2k+1)*M(k)^2 where M(k) is the Motzkin number A001006(k).

Table of values

List of values

A295132 a(n) = (2/n)Sum_{k=1..n} (2k+1)M(k)^2 where M(k) is the Motzkin number A001006(k).