login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A103954 a(n) is the least k such that k and k+n are adjacent powerful numbers. 4
8, 25, 1, 4, 27, 214369, 9, 64, 16, 2187, 3125, 500, 36, 30459361, 49, 128, 512, 225, 81, 21296, 1331, 100467, 625, 1000, 144, 11881, 169, 972, 36963, 6859, 361, 256, 12967168, 899236854927, 289, 864, 117612, 3087, 10609, 2704, 800, 518436000625 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sister sequence of a(n)+n is given by A103955.

a(105) > 10^22. - Donovan Johnson, Nov 19 2011

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..104

Robert G. Wilson v, Table of n, a(n) for n = 1..10000, set to 0 where term is unknown.

CROSSREFS

Cf. A103953, A103955, A023056.

Sequence in context: A103953 A076444 A023056 * A217012 A200838 A302160

Adjacent sequences:  A103951 A103952 A103953 * A103955 A103956 A103957

KEYWORD

nonn

AUTHOR

Max Alekseyev, Feb 22 2005

EXTENSIONS

Offset corrected by Donovan Johnson, Nov 19 2011

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 04:49 EDT 2021. Contains 343030 sequences. (Running on oeis4.)