A113094 Diagonal of square table A113092; also, a(n) equals the n-th term in column 0 of the matrix (n+1)-th power of triangle A113095.

1, 2, 27, 1504, 330745, 289031301, 1011348629263, 14213347986246578, 802722082112213275116, 182118530044524172384716760, 165892108866362877173717099499469

Offset: 1

Author

Paul D. Hanna, Oct 14 2005

Keywords

• nonn

Crossrefs

Cf. A113092, A113095.

Programs

PARI

{a(n,q=4)=local(M=matrix(n+1,n+1));for(r=1,n+1, for(c=1,r, M[r,c]=if(r==c,1,if(c>1,(M^q)[r-1,c-1])+(M^q)[r-1,c]))); return(if(n<1,0,(M^n)[n,1]))}