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Vaclav Kotesovec, Table of n, a(n) for n = 1..245
12 is in the sequence because A022629(12) = 463 is prime.
Cf. A022629, A035359.
Sequence in context: A107031 A207573 A152605 * A023162 A022437 A057983
Adjacent sequences: A285219 A285220 A285221 * A285223 A285224 A285225
Vaclav Kotesovec, Apr 14 2017