A053629 Smallest integer where the harmonic mean of a(n) and A005279(n) is an integer.

2, 4, 3, 6, 5, 8, 4, 6, 14, 12, 10, 7, 5, 16, 18, 8, 12, 18, 6, 28, 9, 15, 21, 26, 20, 12, 33, 10, 7, 32, 22, 25, 34, 24, 21, 36, 11, 16, 38, 45, 8, 21, 39, 12, 15, 46, 20, 26, 18, 30, 9, 42, 13, 40, 54, 33, 24, 30, 58, 70, 66, 20, 14, 62, 55, 54, 10, 64, 30, 28, 18, 50, 68, 48

Offset

1,1

Comments

if m is not in A005279 then smallest integer to have an integer harmonic mean with m is m

Links

Table of n, a(n) for n=1..74.

Crossrefs

Cf. A005279, A046793.

Sequence in context: A332072 A330340 A328696 * A379681 A227370 A135761

Adjacent sequences: A053626 A053627 A053628 * A053630 A053631 A053632

Keyword

nonn

Author

Henry Bottomley, Mar 20 2000

Status

approved