Strong pseudoprimes to base 10.

Terms

a(0) =9a(1) =91a(2) =1729a(3) =4187a(4) =6533a(5) =8149a(6) =8401a(7) =10001a(8) =11111a(9) =19201a(10) =21931a(11) =50851a(12) =79003a(13) =83119a(14) =94139a(15) =100001a(16) =102173a(17) =118301a(18) =118957a(19) =134863a(20) =139231a(21) =148417a(22) =158497a(23) =166499a(24) =188191a(25) =196651a(26) =201917a(27) =216001a(28) =226273a(29) =231337