A143147 a(1)=2. a(n) = the smallest positive multiple of a(n-1) that is > a(n-1) and has the same number of 0's as 1's in its binary representation.

2, 10, 50, 150, 3150, 9450, 141750, 850500, 11056500, 154791000, 773955000, 41019615000, 1066509990000, 3199529970000, 15997649850000, 239964747750000, 2399647477500000, 43193654595000000, 2893974857865000000

Offset

1,1

Links

Table of n, a(n) for n=1..19.

Crossrefs

Cf. A031443, A143146.

Sequence in context: A219662 A355153 A268108 * A317111 A337348 A218778

Adjacent sequences: A143144 A143145 A143146 * A143148 A143149 A143150

Keyword

base,nonn

Author

Leroy Quet, Jul 27 2008

Extensions

a(5)-a(19) from Donovan Johnson, Sep 03 2008

Status

approved