A080948 Least number m having n divisors that are also suffixes of m in binary representation.

1, 3, 15, 63, 735, 4095, 185535, 5810175, 1277603775

Offset

1,2

Comments

a(n) = Min{k: A080942(k)=n}; A080942(a(n)) = n.

2^32 < a(10) <= 12754994175. a(11) <= 5301966462975. - Donovan Johnson, Oct 28 2010

Links

Table of n, a(n) for n=1..9.

Example

a(1)=A000079(0)=1; a(2)=A080943(1)=3; a(3)=A080946(1)=15.

Crossrefs

Cf. A080940, A080941, A007088.

Sequence in context: A118339 A083858 A151241 * A098102 A144067 A001447

Adjacent sequences: A080945 A080946 A080947 * A080949 A080950 A080951

Keyword

nonn,more,base

Author

Reinhard Zumkeller, Feb 25 2003

Extensions

a(7)-a(9) from Donovan Johnson, Oct 28 2010

Status

approved