A274361 Numbers n such that n and n+1 both have 20 divisors.

5264, 7695, 13040, 27135, 33615, 38960, 41391, 44144, 54351, 55808, 62127, 64719, 70064, 72495, 77679, 100624, 101007, 108783, 108944, 116720, 124335, 124496, 132111, 132272, 139887, 145232, 160784, 165807, 176336, 186704, 191888, 199375, 202095

Offset: 1

Author

Charles R Greathouse IV, Jun 19 2016

Keywords

• nonn

Links

• Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Crossrefs

Intersection of A005237 and A030638.

Cf. A000005, A274357.

Programs

PARI

is(n)=numdiv(n)==20 && numdiv(n+1)==20