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A114882 Transposition sequence of A114881. 2
1, 3, 2, 5, 4, 7, 6, 8, 10, 9, 12, 11, 16, 24, 18, 13, 22, 15, 28, 48, 30, 17, 36, 14, 40, 120 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A self-inverse permutation of the natural numbers.

LINKS

Table of n, a(n) for n=1..26.

FORMULA

(See A114538 for definition of transposition sequence.)

EXAMPLE

Start with the northwest corner of A114881:

1 3 5 7 9

2 8 14 20 26

4 24 34 54 64

6 48 76 90 118

a(1)=1 because 1=T(1,1) and T(1,1)=1.

a(2)=3 because 2=T(2,1) and T(1,2)=3.

a(3)=2 because 3=T(1,2) and T(2,1)=2.

a(20)=48 because 20=T(2,4) and T(4,2)=48.

CROSSREFS

Cf. A083140, A114881.

Sequence in context: A135762 A066250 A066251 * A306436 A004442 A065190

Adjacent sequences:  A114879 A114880 A114881 * A114883 A114884 A114885

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 03 2006

STATUS

approved

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Last modified October 22 04:25 EDT 2019. Contains 328315 sequences. (Running on oeis4.)