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A114256 Prime numbers in A014285. 1
2, 23, 42043, 378761, 462109, 667127, 1116851, 1625461, 1908787, 2637043, 2711399, 3019763, 4394603, 5405447, 7418599, 8682757, 10832561, 12652489, 13528079, 14214661, 15167443, 16413641, 23086711, 27209249, 29062339 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
PROG
(PARI) lista(nn) = for(n=1, nn, if (isprime(p=sum(k=1, n, k*prime(k))), print1(p, ", "))); \\ Michel Marcus, May 25 2018
CROSSREFS
Cf. A014285 (Sum i*prime(i); i=1..n), A114257 (numbers n such that A014285(n) is prime).
Sequence in context: A030997 A090511 A369993 * A110714 A067837 A358384
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 18 2005
STATUS
approved

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Last modified April 20 10:04 EDT 2024. Contains 371809 sequences. (Running on oeis4.)