Number of integers m, 1 <= m <= A002569(n), that are not terms in the triangle T(n,k) of A008284.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =1a(12) =2a(13) =4a(14) =6a(15) =8a(16) =12a(17) =19a(18) =26a(19) =39a(20) =52a(21) =71a(22) =92a(23) =120a(24) =161a(25) =205a(26) =258a(27) =320a(28) =398a(29) =499