Fermat pseudoprimes to base 2 that are decagonal.

Terms

a(0) =1105a(1) =1387a(2) =2047a(3) =3277a(4) =6601a(5) =13747a(6) =16705a(7) =19951a(8) =31417a(9) =74665a(10) =83665a(11) =88357a(12) =90751a(13) =275887a(14) =390937a(15) =514447a(16) =604117a(17) =642001a(18) =741751a(19) =748657a(20) =769567a(21) =916327a(22) =1092547a(23) =1293337a(24) =1302451a(25) =1433407a(26) =1520905a(27) =1530787a(28) =1809697a(29) =1907851