A113775 - cp's OEIS frontend

A113775 Number of sets of lists (cf. A000262) whose list sizes are not a multiple of 3.

n	a(n)
0	1
1	1
2	3
3	7
4	49
5	321
6	2131
7	19783
8	195777
9	2101249
10	25721731
11	340358151
12	4902173233
13	75688032577
14	1253701725459
15	22347046050631
16	418439924732161
17	8318748086461953
18	175769214730290307
19	3871849719998940679
20	89734800330818444721
21	2187944831367633226561

[1, 1, 3, 7, 49, 321, 2131, 19783, 195777, 2101249, 25721731, 340358151, 4902173233, 75688032577, 1253701725459, 22347046050631, 418439924732161, 8318748086461953, 175769214730290307, 3871849719998940679, 89734800330818444721, 2187944831367633226561]

cp's OEIS Frontend

A113775 Number of sets of lists (cf. A000262) whose list sizes are not a multiple of 3.

Table of values

List of values