This site is supported by donations to The OEIS Foundation.

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 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 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 21 16:00 EDT 2017. Contains 290890 sequences.