A303819 a(n) is the least k > 0 such that A303809(k) = 2^n.

1, 2, 4, 12, 16, 48, 144, 720, 1296, 6480, 32400, 184320, 331776, 1658880, 8294400, 58060800, 65536, 196608, 589824, 2949120, 5308416, 26542080, 132710400, 928972800, 3317760000, 23224320000, 162570240000, 1788272640000, 7965941760000, 87625359360000

Offset

0,2

Comments

All terms belongs to A025487.

Links

Rémy Sigrist, Table of n, a(n) for n = 0..180

Rémy Sigrist, PARI program for A303819

Rémy Sigrist, Scatterplot of (n, k) such that n, k <= 286 and a(k) divides a(n)

Prog

(PARI) See Links section.

Crossrefs

Cf. A025487, A303809.

Sequence in context: A181135 A054440 A308076 * A074646 A097001 A233191

Adjacent sequences: A303816 A303817 A303818 * A303820 A303821 A303822

Keyword

nonn

Author

Rémy Sigrist, May 01 2018

Status

approved