A166044 - OEIS

A166044

Permutation of nonnegative integers: a(n) tells which integer is in the same position in the square array A163336 as where n is located in the array A163357.

0, 5, 4, 1, 2, 15, 14, 3, 8, 9, 44, 45, 46, 7, 6, 47, 48, 49, 52, 53, 54, 59, 58, 55, 56, 57, 68, 69, 38, 51, 50, 39, 40, 41, 36, 37, 70, 67, 66, 71, 72, 77, 76, 73, 34, 35, 30, 31, 28, 25, 24, 29, 42, 43, 10, 11, 12, 13, 16, 17, 18, 23, 22, 19, 20, 141, 140, 21, 26, 27, 134

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OFFSET

0,2

LINKS

A. Karttunen, Table of n, a(n) for n = 0..16383

Index entries for sequences that are permutations of the natural numbers

EXAMPLE

The top left 8 X 8 corner of A163357:

0 1 14 15 16 19 20 21

3 2 13 12 17 18 23 22

4 7 8 11 30 29 24 25

5 6 9 10 31 28 27 26

58 57 54 53 32 35 36 37

59 56 55 52 33 34 39 38

60 61 50 51 46 45 40 41

63 62 49 48 47 44 43 42

The top left 9 X 9 corner of A163336:

0 5 6 47 48 53 54 59 60

1 4 7 46 49 52 55 58 61

2 3 8 45 50 51 56 57 62

15 14 9 44 39 38 69 68 63

16 13 10 43 40 37 70 67 64

17 12 11 42 41 36 71 66 65

18 23 24 29 30 35 72 77 78

19 22 25 28 31 34 73 76 79

20 21 26 27 32 33 74 75 80

12 is in position (1,3) in A163357, while A163336(1,3) = 46. Thus a(12) = 46.

CROSSREFS

Inverse: A166043. a(n) = A163336(A163358(n)) = A163334(A163360(n)). Fixed points: A165467. Cf. also A166042.

Sequence in context: A136042 A268911 A351123 * A190287 A087707 A198352

Adjacent sequences: A166041 A166042 A166043 * A166045 A166046 A166047

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 06 2009

STATUS

approved