Triangular numbers whose binary conversion, read in decimal, is prime.

Terms

a(0) =3a(1) =253a(2) =595a(3) =703a(4) =2211a(5) =2485a(6) =4753a(7) =13695a(8) =22791a(9) =23005a(10) =35245a(11) =52003a(12) =54285a(13) =62835a(14) =82215a(15) =88831a(16) =119805a(17) =173755a(18) =219453a(19) =238395a(20) =252405a(21) =271953a(22) =275653a(23) =306153a(24) =325221a(25) =350703a(26) =406351a(27) =470935a(28) =482653a(29) =521731