Triangle T(n,k) = A176492(n,k) + A008292(n+1,k+1) - 1 read along rows 0<=k<=n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =13a(5) =1a(6) =1a(7) =45a(8) =45a(9) =1a(10) =1a(11) =129a(12) =365a(13) =129a(14) =1a(15) =1a(16) =353a(17) =2293a(18) =2293a(19) =353a(20) =1a(21) =1a(22) =965a(23) =12937a(24) =28397a(25) =12937a(26) =965a(27) =1a(28) =1a(29) =2677