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A124238 Terms of A123857 that are not powers of 2. 1
38, 205, 316, 736, 3776, 4916, 5888, 7736, 11138, 22287, 23308, 23924, 39538, 62336, 71936 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A123857 list composite indices n that divide A123855(n-1) = Sum[ Sum[ Prime[i]^j, {i,1,n-1}], {j,1,n-1}]. Corresponding indices n such that A123857(n) belongs to this sequence are 5,8,10,12,...

LINKS

Table of n, a(n) for n=1..15.

CROSSREFS

Cf. A123857, A123856, A123855.

Sequence in context: A005910 A281769 A191698 * A020870 A211502 A259518

Adjacent sequences:  A124235 A124236 A124237 * A124239 A124240 A124241

KEYWORD

hard,more,nonn

AUTHOR

Alexander Adamchuk, Oct 22 2006

EXTENSIONS

More terms from Max Alekseyev, Sep 13 2009

STATUS

approved

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Last modified May 5 22:32 EDT 2021. Contains 343578 sequences. (Running on oeis4.)