Triangle read by rows: T(n,k) = binomial(n,k) + A008292(n+1,k+1) - 1.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =13a(8) =13a(9) =1a(10) =1a(11) =29a(12) =71a(13) =29a(14) =1a(15) =1a(16) =61a(17) =311a(18) =311a(19) =61a(20) =1a(21) =1a(22) =125a(23) =1205a(24) =2435a(25) =1205a(26) =125a(27) =1a(28) =1a(29) =253