Antidiagonal sums of triangle A107105: a(n) = Sum_{k=0..n} A107105(n-k,k), where A107105(n,k) = C(n,k)*(C(n,k) + 1)/2.

A107597

Antidiagonal sums of triangle A107105: a(n) = Sum_{k=0..n} A107105(n-k,k), where A107105(n,k) = C(n,k)*(C(n,k) + 1)/2.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =17a(6) =38a(7) =87a(8) =205a(9) =493a(10) =1203a(11) =2969a(12) =7389a(13) =18504a(14) =46561a(15) =117596a(16) =297883a(17) =756388a(18) =1924484a(19) =4904830a(20) =12519121a(21) =31995286a(22) =81864992a(23) =209681349a(24) =537562018a(25) =1379332297a(26) =3542013533a(27) =9102191107a(28) =23406301490a(29) =60226845008

External references