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A304530 Positions of odd terms in A304531. 2
1, 4, 8, 11, 14, 18, 25, 28, 32, 35, 39, 42, 45, 49, 52, 55, 59, 66, 69, 73, 76, 80, 91, 94, 115, 118, 122, 125, 128, 132, 139, 142, 146, 149, 152, 156, 160, 163, 167, 170, 173, 177, 196, 199, 203, 206, 209, 213, 220, 223, 227, 230, 234, 237, 240, 244, 247, 250, 254, 261, 264, 268, 271, 275, 278, 281, 285, 288, 291, 295, 309, 312, 316, 319, 322, 326, 338 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

After A304531(2) = 2, the positions of other primes in A304531 are: 4, 11, 42, 237, 1798, 7192, 69611, 431203, 2401568, ...

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..50000

PROG

(PARI) for(n=1, oo, if(A304531(n)%2, print1(n, ", ")))

CROSSREFS

Cf. A304531.

Differs from A303750 for the first time at n=18, where a(18) = 66, while A303750(18) = 71.

Sequence in context: A311038 A311039 A311040 * A303750 A160592 A311041

Adjacent sequences: A304527 A304528 A304529 * A304531 A304532 A304533

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 14 2018

STATUS

approved

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Last modified November 29 16:20 EST 2022. Contains 358431 sequences. (Running on oeis4.)