A330686 Primorial deflation of (nonzero) K-champion numbers: a(n) is the unique integer x such that A108951(x) = A307866(1+n).

1, 4, 3, 8, 6, 12, 9, 24, 18, 48, 20, 36, 96, 40, 72, 30, 54, 80, 144, 60, 108, 160, 288, 120, 216, 320, 90, 576, 240, 432, 180, 480, 864, 360, 960, 720, 1920, 540, 252, 1440, 3840, 1080, 504, 2880, 1200, 2160, 1008, 5760, 2688, 2400, 4320, 2016, 11520, 3240, 4800, 1512, 8640, 4032, 23040, 1680, 6480, 9600, 3024, 17280, 8064, 7200

Offset: 1

Author

Antti Karttunen, Dec 28 2019

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..761 (computed from the b-file of A307866)

Crossrefs

Cf. A074206, A181815, A307866, A329900, A353568.

Formula

a(n) = A329900(A307866(1+n)).

a(n) = A122111(A353568(n)). - Antti Karttunen, May 20 2022