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A103954 a(n) is the least k such that k and k+n are adjacent powerful numbers. 4

%I

%S 8,25,1,4,27,214369,9,64,16,2187,3125,500,36,30459361,49,128,512,225,

%T 81,21296,1331,100467,625,1000,144,11881,169,972,36963,6859,361,256,

%U 12967168,899236854927,289,864,117612,3087,10609,2704,800,518436000625

%N a(n) is the least k such that k and k+n are adjacent powerful numbers.

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

%C a(105) > 10^22. - _Donovan Johnson_, Nov 19 2011

%H Donovan Johnson, <a href="/A103954/b103954.txt">Table of n, a(n) for n = 1..104</a>

%H Robert G. Wilson v, <a href="/A103954/a103954.txt">Table of n, a(n) for n = 1..10000, set to 0 where term is unknown.</a>

%Y Cf. A103953, A103955, A023056.

%K nonn

%O 1,1

%A _Max Alekseyev_, Feb 22 2005

%E Offset corrected by _Donovan Johnson_, Nov 19 2011

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Last modified May 9 06:30 EDT 2021. Contains 343692 sequences. (Running on oeis4.)