A072847 The a(n)-th highly-composite number (A002182) is the first one divisible by 2^n.

2, 3, 6, 8, 21, 23, 50, 105, 143, 221, 634, 770, 1197, 2996, 5489, 7129, 18673, 25236, 46246, 96437, 179480, 298091, 425614

Offset

1,1

Comments

First occurrence of n in A112779. - Lekraj Beedassy, Sep 02 2006

Links

Table of n, a(n) for n=1..23.

Example

a(10) = 221 because the 221st highly-composite number (1487541362038078419072000) is divisible by 2^10.

Crossrefs

Cf. A002182, A068506, A112779.

Sequence in context: A217137 A248824 A130623 * A274371 A339589 A095895

Adjacent sequences: A072844 A072845 A072846 * A072848 A072849 A072850

Keyword

nonn,more

Author

Don Reble, Jul 24 2002

Extensions

More terms from Amiram Eldar, Jul 01 2019

Status

approved