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A253054 If, for some m, A098550(m-2) is a prime p and A098550(m) = 7p, add 7p to the sequence. 3
329, 427, 581, 679, 973, 1043, 1141, 1267, 1337, 1673, 1897, 1981, 2653, 2723, 2863, 3199, 3227, 3493, 3563, 3787, 3983, 4207, 4319, 4529, 4571, 4711, 4837, 4963, 5299, 5747, 5971, 6209, 6559, 6769, 7133, 7343, 7763, 8197, 8309, 8561, 8603, 8981, 9037, 9107 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A subsequence of A251544 (and of course of A098550).

LINKS

Table of n, a(n) for n=1..44.

CROSSREFS

Cf. A098550, A251544, A253052, A253053.

Sequence in context: A252004 A278352 A246858 * A273615 A231362 A202010

Adjacent sequences:  A253051 A253052 A253053 * A253055 A253056 A253057

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 01 2015

STATUS

approved

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Last modified December 9 07:53 EST 2021. Contains 349627 sequences. (Running on oeis4.)