1,9

Harvey P. Dale, Table of n, a(n) for n = 1..130

a(n) = (A083477(n)-1)/A002113(n). a(n) = A082744(A002113(n)). - David Wasserman, Nov 16 2004

a(11) = 5 because A002113(11) = 22 and 111 = 5*22+1.

skpal[n_]:=Module[{k=1}, While[!PalindromeQ[k*n+1], k++]; k]; skpal/@Select[ Range[ 1000], PalindromeQ] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 22 2018 *)

Cf. A083477.

Sequence in context: A052193 A144763 A280302 * A328202 A306368 A075368

Adjacent sequences: A083475 A083476 A083477 * A083479 A083480 A083481

base,nonn

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 03 2003

Corrected and extended by David Wasserman, Nov 16 2004

approved