A267817 Numbers m that are divisible by A268336(m).

1, 2, 4, 6, 8, 10, 12, 16, 18, 20, 24, 30, 32, 36, 40, 42, 48, 50, 54, 60, 64, 68, 72, 78, 80, 84, 90, 96, 100, 108, 110, 114, 120, 126, 128, 136, 144, 150, 156, 160, 162, 168, 180, 192, 200, 204, 210, 216, 220, 222, 228, 234, 240

Offset: 1

Author

Juri-Stepan Gerasimov, Feb 13 2016

Keywords

• nonn

Comments

Squarefree terms: 1, 2, 6, 10, 30, 42, 78, 110, 114, 210, 222, ...

Examples

			10 is in this sequence because 10/A268336(10) = 10/2 = 5.
		

Links

• Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
• Juri-Stepan Gerasimov, divisors (k^k mod n) of n, SeqFan list, Feb, 13, 2016

Crossrefs

Cf. A174824, A268336.

Programs

PARI

is(n)=my(f=factor(n)[, 1],m=n); for(k=1, #f, m=lcm(m, f[k]-1)); m/=n; m && n%m==0 \\ Charles R Greathouse IV, Feb 22 2016

Extensions

a(16) inserted by Charles R Greathouse IV, Feb 22 2016