%I
%S 4,341,451,481,671,703,1105,1111,1333,1729,2465,3277,3281,3721,3775,
%T 4681,4753,5461,5611,5963,6031,6601,6981,7107,8149,8695,8911,9005,
%U 9637,12673,14701,14981,15841,18721,22177,23001,24211,28939,29089,29341
%N Records in A098650.
%t f[n_] := Block[{k = n + 1}, While[ PrimeQ[k]  PowerMod[n, k  1, k] != 1, k++ ]; k]; a = {1}; b = {4}; Do[ c = f[n]; If[c > b[[ 1]], AppendTo[a, n]; AppendTo[b, c]; Print[{n, c}]], {n, 2, 10^6}]; b
%Y Cf. A007535, A098653.
%K nonn
%O 1,1
%A _Robert G. Wilson v_, Sep 19 2004
