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A054082 Permutation of N: a(1)=2, a(2)=1 and for each k >= 2, let p(k)=least natural number not already an a(i), q(k)=p(k)+k-1, a(2k-1)=q(k), a(2k)=p(k). +0
4
2, 1, 4, 3, 7, 5, 9, 6, 12, 8, 15, 10, 17, 11, 20, 13, 22, 14, 25, 16, 28, 18, 30, 19, 33, 21, 36, 23, 38, 24, 41, 26, 43, 27, 46, 29, 49, 31, 51, 32, 54, 34, 56, 35, 59, 37, 62, 39, 64, 40, 67, 42, 70, 44, 72, 45, 75, 47, 77, 48, 80, 50, 83 (list; graph; listen)
OFFSET

1,1

LINKS

Index entries for sequences that are permutations of the natural numbers

CROSSREFS

Odd-indexed terms: A026356. Even-indexed terms: A026355. Inverse permutation: A064579.

Sequence in context: A114861 A086512 A120751 this_sequence A101708 A026255 A109250

Adjacent sequences: A054079 A054080 A054081 this_sequence A054083 A054084 A054085

KEYWORD

nonn,eigen

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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