A081457 a(n) = A081456(n)^(1/2).
1, 2, 4, 6, 12, 36, 120, 240, 720, 2520, 10080, 30240, 110880, 443520, 1814400, 6652800, 26611200, 133056000, 518918400, 2075673600, 10378368000, 58118860800, 261534873600, 1270312243200, 5928123801600, 29640619008000, 168951528345600, 844757641728000, 4505374089216000, 25342729251840000
Offset: 1
Keywords
Links
- Max Alekseyev, Table of n, a(n) for n = 1..50
Formula
a(n) equals smallest integer m>0 such that A086435(m^2)=n-1. - Max Alekseyev, Jul 16 2009
Extensions
More terms from David Garber, Jun 17 2003
More terms from Ray G. Opao, Aug 01 2005
Corrected and extended by R. J. Mathar, Nov 12 2006
More terms from Max Alekseyev, Jun 05, Jul 16 2009
Corrected and extended by Max Alekseyev, Jun 03 2023