A249731 - OEIS

%I #6 Nov 05 2014 11:29:29

%S 0,0,0,0,2,0,1,0,6,-2,0,0,3,0,3,-2,13,12,-1,2,13,-2,3,0,15,12,11,-20,

%T -4,-12,-12,-14,21,14,20,24,1,2,11,-4,20,20,11,6,29,-18,-4,-6,22,26,

%U 32,18,32,22,-25,-34,9,-4,-1,-6,9,0,15,-50,25,36,23,32,49,32,44,48,13,26,43,10,41,40,31,24,73,-12

%N Number of multiples of 4 on row n of Pascal's triangle minus the number of multiples of 9 on the same row: a(n) = A249732(n) - A249733(n).

%H Antti Karttunen, <a href="/A249731/b249731.txt">Table of n, a(n) for n = 0..6561</a>

%F a(n) = A249732(n) - A249733(n).

%o (Scheme) (define (A249731 n) (- (A249732 n) (A249733 n)))

%Y Cf. A007318, A034931, A095143, A249723, A249732, A249733.

%K sign

%O 0,5

%A _Antti Karttunen_, Nov 05 2014