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

Author

Chai Wah Wu, Mar 17 2021

Keywords

• nonn

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.