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a(n) is the smallest number with the product of its binary run lengths = A167489(a(n))
Table of n, a(n) for n=1..48.
12 is in the sequence because the product of the run lengths in the binary representation of 12 is 4, and no number less than 12 has a binary run length product of 4.
Cf. A167489 - Product of run lengths in the binary representation of n
Cf. A167490 - Smallest number with binary run length product = n
Sequence in context: A256483 A262567 A226229 * A210185 A280345 A062325
Adjacent sequences: A167488 A167489 A167490 * A167492 A167493 A167494
Andrew Weimholt, Nov 05 2009