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A083502 Smallest k such that n*(n+k) + 1 is an n-th power. 1

%I #5 Aug 25 2014 11:57:43

%S 1,2,18,16,1550,2598,299586,812,29118,348678430,67546215506,20345040,

%T 61054982557998,281241170407078,76861433640456450,2690404,

%U 128583032925805678334,211927625850,275941052631578947368402,174339200

%N Smallest k such that n*(n+k) + 1 is an n-th power.

%C Sequence is obviously infinite.

%C If the sequence is restricted to only prime n's, the sequence increases absolutely. See comment in A083503.

%t Do[i = 2; While[k = (i^n - 1)/n - n; !IntegerQ[k], i++ ]; Print[k], {n, 1, 20}]

%Y The i's in the above Mathematica coding, except for a(1), give A055670.

%Y Cf. A083500, A083503.

%K nonn

%O 1,2

%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 03 2003

%E Edited and extended by _Robert G. Wilson v_, May 11 2003

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)