A289258 Prime factors of numbers in A289257.

3, 19, 163, 1459, 8803, 17497, 52489, 78787, 164617, 370387

Offset

1,1

Comments

Kalmynin conjectures that this sequence is infinite.

I have some doubts about terms 17497, 52489, 164617 that are == 1 (mod 8).

Links

Table of n, a(n) for n=1..10.

Alexander Kalmynin, On Novák numbers, arXiv:1611.00417 [math.NT], 2016. See Theorem 7 p. 11.

Crossrefs

Cf. A006521, A057719, A124240, A289257.

Sequence in context: A362660 A232691 A057719 * A199559 A136474 A337818

Adjacent sequences: A289255 A289256 A289257 * A289259 A289260 A289261

Keyword

nonn,more

Author

Michel Marcus, Jun 29 2017

Status

approved