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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
OFFSET
1,1
COMMENTS
Sister sequence of a(n)+n is given by A103955.
a(105) > 10^22. - Donovan Johnson, Nov 19 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Max Alekseyev, Feb 22 2005
EXTENSIONS
Offset corrected by Donovan Johnson, Nov 19 2011
STATUS
approved