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A160940 Row sums of triangle defined in A083809. 1
2, 10, 95, 86, 2063, 26338, 1796701, 37907460, 1121781743, 624173160, 301508365839, 448445587666, 90026771795043, 1998858898554, 406702125332939256247, 78594656763841284, 186966120412500951787 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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
Sequence in context: A103436 A182173 A362643 * A346649 A355780 A193290
KEYWORD
nonn
AUTHOR
Klaus Brockhaus, May 30 2009
STATUS
approved

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Last modified May 28 16:19 EDT 2024. Contains 372916 sequences. (Running on oeis4.)