A366205 - OEIS

A366205

Average of a twin prime pair which is the sum of the first k primes, for some k.

6870, 25800, 38238, 125508, 128112, 220512, 372612, 3245688, 4286748, 15433968, 19659138, 23283852, 23494650, 23579262, 26233368, 32131272, 32380728, 34775988, 41299848, 58705260, 61470132, 63588432, 63873960, 91649652, 92774808, 106956252, 124336212, 159723300

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OFFSET

1,1

LINKS

Paolo Xausa, Table of n, a(n) for n = 1..5000

FORMULA

a(n) = A007504(A366206(n)).

MATHEMATICA

With[{upto=10^4}, Select[Accumulate[Prime[Range[upto]]], PrimeQ[#-1]&&PrimeQ[#+1]&]]

CROSSREFS

Intersection of A007504 with A014574.

Cf. A346706, A366094, A366206 (corresponding k values).