|
%I
%S 0,1,3,4,5,7,13,16,19,21,22,34,40,49,51,53,67,77,83,85,97,103,115,121,
%T 148,196,202,205,211,213,292,307,309,310,333,339,340,341,346,358,364,
%U 439,445,583,589,601,607,819,821,845,851,853,877,925,931,1021,1039,1069
%N Numbers n such that C(6n,n)/(5n+1) (A002295) is not divisible by 6.
%C Is a(n)/n^2 bounded? It seems that 0.2<a(n)/n^2<=1
%Y Cf. A000225 (C(2n, n)/(n+1) is not divisible by 2), A003462 (C(3n, n)/(2n+1) is not divisible by 3), A003463 (C(5n, n)/(4n+1) is not divisible by 5).
%K nonn
%O 1,3
%A _Benoit Cloitre_, Jan 14 2003
|
