A triangular sequence:t(n,m)=A033306(n,m)-A033306(n,0)+1.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =2a(9) =1a(10) =1a(11) =6a(12) =10a(13) =6a(14) =1a(15) =1a(16) =24a(17) =49a(18) =49a(19) =24a(20) =1a(21) =1a(22) =110a(23) =248a(24) =298a(25) =248a(26) =110a(27) =1a(28) =1a(29) =545