A350098 a(n) is the lower end of a record gap A349995(n) between consecutive odd squarefree semiprimes (A046388).

15, 21, 95, 267, 2369, 6559, 8817, 13705, 15261, 21583, 35981, 66921, 113009, 340891, 783757, 872219, 3058853, 3586843, 5835191, 12345473, 108994623, 248706917, 268749691, 679956119, 709239621, 3648864859, 3790337723, 4171420481, 33955869693, 34279038379, 34840796369

Offset

1,1

Links

Lucas A. Brown, Table of n, a(n) for n = 1..41 (first 34 terms from Hugo Pfoertner)

Lucas A. Brown, Python program.

Formula

a(n) = A350099(n) - A349995(n).

Example

See A349995.

Crossrefs

Cf. A046388, A085809, A341828, A349995, A350099.

Starting at a(3)=95 the terms coincide with the known terms of A114057.

Sequence in context: A342806 A190662 A274084 * A334118 A219918 A084931

Adjacent sequences: A350095 A350096 A350097 * A350099 A350100 A350101

Keyword

nonn

Author

Hugo Pfoertner, Dec 26 2021

Status

approved