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A103955 a(n) is the least k such that k-n and k are adjacent powerful numbers. 2
9, 27, 4, 8, 32, 214375, 16, 72, 25, 2197, 3136, 512, 49, 30459375, 64, 144, 529, 243, 100, 21316, 1352, 100489, 648, 1024, 169, 11907, 196, 1000, 36992, 6889, 392, 288, 12967201, 899236854961, 324, 900, 117649, 3125, 10648, 2744, 841, 518436000667 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sister sequence of a(n)-n is given by A103954.

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

LINKS

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

CROSSREFS

Cf. A001694, A103952, A074954, A103954, A023056.

Sequence in context: A135864 A074954 A103952 * A109041 A227900 A010817

Adjacent sequences:  A103952 A103953 A103954 * A103956 A103957 A103958

KEYWORD

nonn

AUTHOR

Max Alekseyev, Feb 22 2005

EXTENSIONS

Offset corrected by Donovan Johnson, Nov 19 2011

STATUS

approved

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Last modified April 20 03:12 EDT 2019. Contains 322294 sequences. (Running on oeis4.)