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

1,1

Links

Table of n, a(n) for n=1..17.

Example

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

Prog

(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] ];

Crossrefs

Cf. A083809, A083810.

Sequence in context: A103436 A182173 A362643 * A346649 A355780 A193290

Adjacent sequences: A160937 A160938 A160939 * A160941 A160942 A160943

Keyword

nonn

Author

Klaus Brockhaus, May 30 2009

Status

approved