A159980 - OEIS

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A159980

Lodumo_2 of Catalan numbers .

1, 3, 0, 5, 2, 4, 6, 7, 8, 10, 12, 14, 16, 18, 20, 9, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 11, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 13, 114, 116, 118, 120, 122

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

Permutation of nonnegative integers.

LINKS

Table of n, a(n) for n=0..68.

FORMULA

a(n)=lod_2(A000108(n)).

CROSSREFS

Cf. A000108, A036987

Sequence in context: A007431 A215447 A346692 * A343054 A098496 A175297

Adjacent sequences: A159977 A159978 A159979 * A159981 A159982 A159983

KEYWORD

easy,nonn

AUTHOR

Philippe Deléham, Apr 28 2009

STATUS

approved