A160940 Row sums of triangle defined in A083809.

2, 10, 95, 86, 2063, 26338, 1796701, 37907460, 1121781743, 624173160, 301508365839, 448445587666, 90026771795043, 1998858898554, 406702125332939256247, 78594656763841284, 186966120412500951787

Offset: 1

Author

Klaus Brockhaus, May 30 2009

Keywords

• nonn

Examples

			Fourth row is 5, 11, 23, 47, so a(4) = 86.
		

Crossrefs

Cf. A083809, A083810.

Programs

Magma

f:=function(n) m:=1; while not IsPrime(m*n+1) do m+:=1; end while; return m*n+1; end function; [ &+[ k eq 1 select f(j) else f(Self(k-1)): k in [1..j] ]: j in [1..17] ];