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A077022 Values of k such that sum of first k primes squared is divisible by k-th prime. 1
1, 6, 17, 11156, 16548 (list; graph; refs; listen; history; text; internal format)
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
Sequence in context: A209482 A209341 A355787 * A074923 A093061 A264028
KEYWORD
nonn,more
AUTHOR
Randy L. Ekl and Zak Seidov, Oct 17 2002
STATUS
approved

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Last modified March 28 13:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)