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A066249 Inverse permutation to A066248. 3
3, 1, 5, 2, 7, 4, 8, 6, 9, 10, 11, 12, 13, 16, 14, 18, 15, 22, 17, 28, 19, 30, 20, 36, 21, 40, 23, 42, 24, 46, 25, 52, 26, 58, 27, 60, 29, 66, 31, 70, 32, 72, 33, 78, 34, 82, 35, 88, 37, 96, 38, 100, 39, 102, 41, 106, 43, 108, 44, 112, 45, 126, 47, 130, 48, 136, 49, 138, 50 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Permutation of natural numbers.

LINKS

Table of n, a(n) for n=1..69.

Index entries for sequences that are permutations of the natural numbers

FORMULA

a(n) = (if n is even then A000040(n/2) else A002808((n+1)/2)) - 1.

CROSSREFS

Cf. A066248, A000040, A002808, A066251, A066253.

Sequence in context: A276505 A201901 A174239 * A065168 A318581 A065277

Adjacent sequences:  A066246 A066247 A066248 * A066250 A066251 A066252

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Dec 09 2001

STATUS

approved

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Last modified October 15 22:25 EDT 2019. Contains 328038 sequences. (Running on oeis4.)