A280488 a(n) = n / A280489(n) = n / gcd(n,A241909(n)).

1, 1, 3, 4, 5, 2, 7, 8, 3, 10, 11, 12, 13, 14, 5, 16, 17, 6, 19, 4, 7, 22, 23, 24, 25, 26, 27, 28, 29, 2, 31, 32, 11, 34, 35, 36, 37, 38, 13, 40, 41, 14, 43, 44, 9, 46, 47, 48, 49, 10, 17, 52, 53, 18, 55, 8, 19, 58, 59, 12, 61, 62, 63, 64, 65, 22, 67, 68, 23, 14, 71, 72, 73, 74, 5, 76, 77, 26, 79, 80, 81, 82, 83, 12, 85, 86, 29, 88, 89, 30, 91, 92, 31

Offset

1,3

Links

Antti Karttunen, Table of n, a(n) for n = 1..8192

Formula

a(n) = n / A280489(n).

Prog

(Scheme) (define (A280488 n) (/ n (A280489 n)))

Crossrefs

Cf. A241909, A280489, A280490, A278520.

Sequence in context: A237273 A272025 A262411 * A250072 A099120 A199620

Adjacent sequences: A280485 A280486 A280487 * A280489 A280490 A280491

Keyword

nonn

Author

Antti Karttunen, Jan 09 2017

Status

approved