A278231 Least number with the same prime signature as the n-th number in Blue-code: a(n) = A046523(A193231(n)).

1, 2, 2, 2, 4, 6, 2, 6, 6, 12, 2, 6, 2, 4, 8, 2, 16, 12, 2, 12, 6, 2, 6, 30, 2, 2, 12, 8, 6, 24, 4, 6, 12, 48, 4, 24, 6, 2, 12, 60, 2, 12, 6, 6, 24, 6, 2, 6, 6, 6, 32, 6, 6, 36, 2, 12, 12, 6, 2, 24, 2, 2, 30, 6, 60, 6, 6, 48, 16, 2, 6, 60, 6, 2, 24, 6, 6, 12, 6, 12, 6, 2, 30, 6, 64, 30, 2, 12, 6, 72, 2, 30, 2

Offset: 1

Author

Antti Karttunen, Nov 16 2016

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..65537
• Indranil Ghosh, Python program to generate the sequence
• Index entries for sequences computed from exponents in factorization of n

Crossrefs

Cf. A046523, A193231, A278233.

Programs

Scheme

(define (A278231 n) (A046523 (A193231 n)))

Formula

a(n) = A046523(A193231(n)).