%I
%S 3,7,53,409,829,2503,27701,360337,720703,12252197,232792501,
%T 5354228843,26771144371,80313433159,2329089562747,72201776446757,
%U 144403552893563,5342931457063157,219060189739591153,9419588158802421517,442720643463713815129
%N a(n) = largest prime < A051451(n)  1
%C This is a companion to A058019.
%e A051451(6) = 420, 4201=419 is preceded by the prime 409, so a(6) = 409.
%Y Cf. A000961, A003418, A051451.
%K sign
%O 3,1
%A _Labos Elemer_, Nov 15 2000
%E Edited by _N. J. A. Sloane_, Aug 20 2021
