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Right diagonal of triangle in A072467.
2

%I #3 Dec 05 2013 19:55:20

%S 2,3,7,29,61,157,239,521,739,1021,1277,2221,2731,3851,4651,5857,7039,

%T 9343,10831,14561,15919,18481,20563,25321,27551,32371,35803,40993,

%U 44371,53551,55987,66721,72733,80207,87151,97453,101603,116471,123787

%N Right diagonal of triangle in A072467.

%t a = {2}; k = 3; Do[i = 1; While[i < n + 1, If[ PrimeQ[k] && Mod[k, n] == 1, a = Append[a, k]; i++ ]; k++ ], {n, 2, 40}]; Table[ a[[n(n - 1)/2 + 1]], {n, 1, 40}]

%Y Cf. A072467, A072468.

%K nonn

%O 1,1

%A _Amarnath Murthy_, Jun 19 2002

%E Edited by _Robert G. Wilson v_, Jun 28 2002