A350098 - OEIS

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A350098

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

4

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

(list; graph; refs; listen; history; text; internal format)

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

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