A342350 Numbers k such that lcm(1,2,3,...,k)/21 equals the denominator of the k-th harmonic number H(k).

38272753, 38272754, 38272755, 38272756, 38272757, 38272758, 38272759, 38272760, 38272761, 38272762, 38272763, 38272764, 38272765, 38272766, 38272767, 38272768, 38272769, 38272770, 38272771, 38272772, 38272773, 38272774, 38272775, 38272776, 38272777, 38272778

Offset

1,1

Comments

Positions where 21 occurs in A110566.

Links

Chai Wah Wu, Table of n, a(n) for n = 1..10000

Tanya Khovanova, Non Recursions

Crossrefs

Cf. A002805, A003418, A110566.

Cf. A098464, A112813, A112814, A112815, A112816, A112817, A112818, A112819, A112820, A112821, A112822.

Sequence in context: A272517 A246232 A248710 * A015365 A272599 A105004

Adjacent sequences: A342347 A342348 A342349 * A342351 A342352 A342353

Keyword

nonn

Author

Chai Wah Wu, Mar 17 2021

Status

approved