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A114882
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Transposition sequence of A114881.
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2
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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; internal format)
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OFFSET
| 1,2
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COMMENTS
| A self-inverse permutation of the natural numbers.
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FORMULA
| (See A114538 for definition of transposition sequence.)
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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.
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CROSSREFS
| Cf. A083140, A114881.
Sequence in context: A135762 A066250 A066251 * A004442 A065190 A152208
Adjacent sequences: A114879 A114880 A114881 * A114883 A114884 A114885
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KEYWORD
| nonn
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu), Jan 03 2006
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