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URL: https://oeis.org/A342440

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A342440
The longest length of consecutive primes which sums to prime = A342439(n) < 10^n.
5
2, 6, 21, 65, 183, 543, 1587, 4685, 13935, 41708, 125479, 379317, 1150971, 3503790, 10695879, 32729271, 100361001, 308313167, 948694965
OFFSET
1,1
COMMENTS
Inspired by the 50th problem of Project Euler (see link).
The corresponding largest primes obtained are in A342439.
Solutions and Python program are proposed in Dreamshire and archive.today links. - Daniel Suteu, Mar 12 2021
EXAMPLE
A342439(1) = 5 = 2+3, hence a(1) = 2 since there are 2 terms in this longest sum.
A342439(2) = 41 = 2 + 3 + 5 + 7 + 11 + 13 hence a(2) = 6 since there are 6 terms in this longest sum.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Bernard Schott, Mar 12 2021
EXTENSIONS
a(4)-a(17) from Daniel Suteu, Mar 12 2021
a(18)-a(19) from Martin Ehrenstein, Mar 13 2021
STATUS
approved