A141057 - cp's OEIS frontend

A141057 Number of Abelian cubes of length 3n over an alphabet of size 3. An Abelian cube is a string of the form x x' x'' with |x| = |x'| = |x''| and x is a permutation of x' and x''.

n	a(n)
0	1
1	3
2	27
3	381
4	6219
5	111753
6	2151549
7	43497891
8	912018123
9	19671397617
10	434005899777
11	9754118112951
12	222621127928109
13	5147503311510927
14	120355825553777043
15	2841378806367492381
16	67648182142185172683
17	1622612550613755130497
18	39178199253650491044441

[1, 3, 27, 381, 6219, 111753, 2151549, 43497891, 912018123, 19671397617, 434005899777, 9754118112951, 222621127928109, 5147503311510927, 120355825553777043, 2841378806367492381, 67648182142185172683, 1622612550613755130497, 39178199253650491044441]

cp's OEIS Frontend

A141057 Number of Abelian cubes of length 3n over an alphabet of size 3. An Abelian cube is a string of the form x x' x'' with |x| = |x'| = |x''| and x is a permutation of x' and x''.

Table of values

List of values