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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 Cf. A083809, A083810. Sequence in context: A100622 A103436 A182173 * A193290 A193435 A132572 Adjacent sequences:  A160937 A160938 A160939 * A160941 A160942 A160943 KEYWORD nonn AUTHOR Klaus Brockhaus, May 30 2009 STATUS approved

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Last modified February 24 12:13 EST 2020. Contains 332209 sequences. (Running on oeis4.)