A106339 Absolute row sums of triangle A106338.

1, 2, 6, 30, 270, 4830, 189630, 16912350, 3353412510, 1432516194270, 1288072947428190, 2400557459496515550, 9177479849690707865310, 71463760915341917360748510, 1127799535042492118475108550110

Offset: 0

Author

Paul D. Hanna, May 01 2005

Keywords

• nonn

Crossrefs

Cf. A106338.

Programs

PARI

{a(n)=sum(k=0,n,k!*abs((matrix(n+1,n+1,r,c,if(r>=c,(r-c)!* sum(m=0,r-c+1,(-1)^(r-c+1-m)*m^r/m!/(r-c+1-m)!)))^-1)[n+1,k+1]))}