A345051 Numbers k such that A345048(k) is equal to A345049(k).

2, 6, 9, 15, 28, 496, 625, 1225, 3993, 8128, 117649, 218491, 857375, 3788435, 4259571, 33550336, 69302975, 136410197, 200533921, 313742585, 603439225, 1516358753, 2563893625, 3326174929, 5655792025, 8589869056, 10214476341

Offset: 1

Author

Antti Karttunen, Jun 06 2021

Keywords

• nonn
• more

Comments

Numbers k for which A342001(n) * A051709(n) = A173557(n) * A345001(n).

Conjecture: Sequence is a disjoint union of A000396 and A166374, i.e., there are no terms of any other kind.

Links

• Index entries for sequences where odd perfect numbers must occur, if they exist at all.

Crossrefs

Cf. A051709, A173557, A342001, A345001, A345048, A345049.

Positions of zeros in A345050.

Cf. A000396, A166374 (subsequences).

Cf. also A345003.

Programs

PARI

isA345051(n) = (0==A345050(n));

Extensions

a(21)-a(27) from Amiram Eldar, Dec 08 2023