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A092209 Smallest number k such that k, k+2, k+4, ..., k+2n are semiprimes. 5
4, 4, 91, 213, 213, 1383, 3091, 8129 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Semiprimes in arithmetic progression. All terms are odd, except for the first two. See also A056809.

LINKS

Table of n, a(n) for n=0..7.

Eric Weisstein's World of Mathematics, Semiprime.

CROSSREFS

First entry in A001358, A092207, A092125, A092126, A092127, A092128, A092129, A082919 respectively.

Sequence in context: A317868 A224092 A217188 * A068337 A009534 A009559

Adjacent sequences:  A092206 A092207 A092208 * A092210 A092211 A092212

KEYWORD

nonn,fini,full

AUTHOR

Robert G. Wilson v and Zak Seidov, Feb 24 2004

STATUS

approved

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Last modified May 25 19:19 EDT 2022. Contains 354071 sequences. (Running on oeis4.)