%I #8 Jun 12 2021 06:38:28
%S 2,7,17,31,59,83,125,159,215,299,351,455,545,615,719,863,1019,1115,
%T 1291,1439,1553,1759,1931,2159,2449,2651,2807,3023,3189,3419,3967,
%U 4223,4553,4759,5249,5471,5845,6231,6551,6959,7379,7643,8255,8535,8909,9199,9963
%N a(n) = (prime(n)+1)*n - 1.
%t Table[n(Prime[n]+1)-1,{n,50}] (* _Harvey P. Dale_, Apr 19 2018 *)
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jun 16 2003