

A119752


a(1)=2; a(n)=first even number greater than a(n1) such that a(i)+a(n)+1 is prime for all i=1,2,...,n.


9



2, 8, 14, 44, 224, 638, 1274, 4004, 675404, 2203958, 3075158, 6195234164, 77989711184, 4566262987328
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..14.


MATHEMATICA

Table[If[n == 1, a[1] = 2, j = a[n  1] + 2; While[a[n] = j; !
AllTrue[Table[a[i] + a[n] + 1, {i, 1, n}], PrimeQ], j += 2]; j]
, {n, 1, 9}] (* Robert Price, Apr 03 2019 *)


CROSSREFS

Cf. A119751
Sequence in context: A039660 A333053 A333054 * A111001 A055258 A277649
Adjacent sequences: A119749 A119750 A119751 * A119753 A119754 A119755


KEYWORD

more,nonn


AUTHOR

Walter Kehowski, Jun 17 2006


EXTENSIONS

a(13),a(14) from Donovan Johnson, Mar 23 2008


STATUS

approved



