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

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).

Sequence in context: A013892 A154086 A064351 * A345148 A345149 A345603

Adjacent sequences: A366202 A366203 A366204 * A366206 A366207 A366208

Keyword

nonn

Author

Paolo Xausa, Oct 04 2023

Status

approved