A116456 - cp's OEIS frontend

A116456 a(n) is the number of words of length 2n in the language F, the language of "parity-constrained-shuffle of well-parenthesized words".

n	a(n)
0	1
1	2
2	8
3	40
4	228
5	1424
6	9520
7	67064
8	492292
9	3735112
10	29114128
11	232077344
12	1885195276
13	15562235264
14	130263211680
15	1103650297320
16	9450760284100
17	81696139565864
18	712188311673280
19	6255662512111248
20	55324571848957688
21	492328039660580784
22	4406003100524940624
23	39635193868649858744
24	358245485706959890508

[1, 2, 8, 40, 228, 1424, 9520, 67064, 492292, 3735112, 29114128, 232077344, 1885195276, 15562235264, 130263211680, 1103650297320, 9450760284100, 81696139565864, 712188311673280, 6255662512111248, 55324571848957688, 492328039660580784, 4406003100524940624, 39635193868649858744, 358245485706959890508]

cp's OEIS Frontend

A116456 a(n) is the number of words of length 2n in the language F, the language of "parity-constrained-shuffle of well-parenthesized words".

Table of values

List of values