Sort the digits of these triangular numbers into descending order and drop zeros to get primes.

Terms

a(0) =3a(1) =136a(2) =300a(3) =703a(4) =1081a(5) =1378a(6) =1540a(7) =1891a(8) =3160a(9) =3403a(10) =3655a(11) =3916a(12) =4186a(13) =5356a(14) =7381a(15) =8128a(16) =8911a(17) =9316a(18) =11026a(19) =11935a(20) =12880a(21) =13861a(22) =14878a(23) =15400a(24) =15931a(25) =17578a(26) =18145a(27) =18721a(28) =19306a(29) =19900