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A137672 Number of ones in binary representation of A137671(n). 3
1, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 3, 1, 1, 2, 2, 2, 3, 1, 2, 1, 3, 2, 2, 2, 3, 1, 2, 2, 3, 2, 3, 2, 4, 1, 3, 3, 1, 3, 2, 1, 4, 1, 1, 2, 2, 2, 3, 2, 2, 3, 3, 2, 3, 3, 3, 4, 2, 4, 1, 2, 2, 3, 1, 3, 2, 3, 2, 4, 2, 3, 3, 2, 4, 2, 4, 3, 3, 3, 4, 1, 2, 5, 1, 3, 2, 1, 3, 3, 3, 4, 2, 2, 2, 3, 3, 4, 2, 2, 3, 4, 3, 5, 1, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

R. Zumkeller, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A000120(A137671(a(n));

a(A137674(n)) = 1; a(A137674(n)-1) = n-1.

CROSSREFS

Cf. A000120, A137674.

Sequence in context: A296977 A025878 A143421 * A141272 A281527 A124038

Adjacent sequences:  A137669 A137670 A137671 * A137673 A137674 A137675

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Feb 05 2008

STATUS

approved

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Last modified October 30 12:22 EDT 2020. Contains 338079 sequences. (Running on oeis4.)