A277906 Least number with same prime signature as phi(n): a(n) = A046523(A000010(n)).

1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 6, 4, 12, 6, 8, 8, 16, 6, 12, 8, 12, 6, 6, 8, 12, 12, 12, 12, 12, 8, 30, 16, 12, 16, 24, 12, 36, 12, 24, 16, 24, 12, 30, 12, 24, 6, 6, 16, 30, 12, 32, 24, 12, 12, 24, 24, 36, 12, 6, 16, 60, 30, 36, 32, 48, 12, 30, 32, 12, 24, 30, 24, 72, 36, 24, 36, 60, 24, 30, 32, 24, 24, 6, 24

Offset: 1

Author

Antti Karttunen, Nov 17 2016

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000010, A046523, A276528.

Programs

Scheme

(define (A277906 n) (A046523 (A000010 n)))

Formula

a(n) = A046523(A000010(n)).