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A145522 a(n) is such that A145521(n) =A053810(a(n)). 1
1, 3, 2, 6, 5, 4, 10, 23, 12, 7, 39, 9, 97, 24, 164, 484, 2759, 5044, 109, 32334, 114605, 216960, 8, 14, 252, 785135, 5503557, 28 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence is a permutation of the positive integers. It is its own inverse permutation.

LINKS

Table of n, a(n) for n=1..28.

EXAMPLE

The primes raised to prime exponents form the sequence, when the terms are arranged in numerical order, 4,8,9,25,27,32,49,121,125,128,...(sequence A053810). The 10th term is 128, which is 2^7. So the 10th term of sequence A145521 is 7^2 = 49. 49 is the 7th term of A053810. So a(10) = 7 and a(7) = 10.

CROSSREFS

A053810, A145521

Sequence in context: A194909 A038722 A277881 * A283939 A131968 A191740

Adjacent sequences:  A145519 A145520 A145521 * A145523 A145524 A145525

KEYWORD

more,nonn

AUTHOR

Leroy Quet, Oct 12 2008

EXTENSIONS

a(11)-a(28) from Ray Chandler, Nov 01 2008

STATUS

approved

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Last modified March 26 16:31 EDT 2017. Contains 284137 sequences.