A113100 - cp's OEIS frontend

A113100 Number of 4-tournament sequences: a(n) gives the number of increasing sequences of n positive integers (t_1,t_2,...,t_n) such that t_1 = 3 and t_i = 3 (mod 3) and t_{i+1} <= 4*t_i for 1

n	a(n)
0	1
1	3
2	27
3	693
4	52812
5	12628008
6	9924266772
7	26507035453923
8	246323730279500082
9	8100479557816637139288
10	954983717308947379891713642
11	407790020849346203244152231395953

[1, 3, 27, 693, 52812, 12628008, 9924266772, 26507035453923, 246323730279500082, 8100479557816637139288, 954983717308947379891713642, 407790020849346203244152231395953]

cp's OEIS Frontend

A113100 Number of 4-tournament sequences: a(n) gives the number of increasing sequences of n positive integers (t_1,t_2,...,t_n) such that t_1 = 3 and t_i = 3 (mod 3) and t_{i+1} <= 4*t_i for 1

Table of values

List of values