A077022 - OEIS

A077022

Values of k such that sum of first k primes squared is divisible by k-th prime.

1, 6, 17, 11156, 16548

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OFFSET

1,2

COMMENTS

Numbers k such that A072004(k) = 0.

a(6) > 10^11. - Giovanni Resta, Mar 07 2013

LINKS

EXAMPLE

6 is a term because A024450(6)/prime(6) = 29;

17 is a term because A024450(17)/prime(17) = 284;

11156 is a term because A024450(11156)/prime(11156) = 410066261;

16548 is a term because A024450(16548)/prime(16548) = 941945317.

MATHEMATICA

Module[{nn=17000, prs}, prs=Accumulate[Prime[Range[nn]]^2]; Select[Range[ nn], Divisible[prs[[#]], Prime[#]]&]] (* Harvey P. Dale, Nov 23 2013 *)

CROSSREFS

KEYWORD

nonn,more

AUTHOR

STATUS

approved