

A115050


Numbers n such that in the 3 X 3 square arrangement of the 9 primes p(n),..,p(n+8), totals of 3 rows and 3 columns, are all prime.


0




OFFSET

1,1


LINKS



EXAMPLE

a(1) = 417979 because p(417979) = 6080051 and we have 3 x 3 square with desired property:
................
..7..11..13=>31.
.17..19..23=>59.
.29..31..37=>97.
..v..v...v.
.53..61..73.


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



