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A303819
a(n) is the least k > 0 such that A303809(k) = 2^n.
2
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.
PROG
(PARI) See Links section.
CROSSREFS
Sequence in context: A181135 A054440 A308076 * A074646 A097001 A233191
KEYWORD
nonn
AUTHOR
Rémy Sigrist, May 01 2018
STATUS
approved