a(n) = number of pairs (p,q) such that 4*p + 9*q = n.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =0a(8) =1a(9) =1a(10) =0a(11) =0a(12) =1a(13) =1a(14) =0a(15) =0a(16) =1a(17) =1a(18) =1a(19) =0a(20) =1a(21) =1a(22) =1a(23) =0a(24) =1a(25) =1a(26) =1a(27) =1a(28) =1a(29) =1