Smallest number having exactly n divisors of the form 8*k + 1.

Terms

a(0) =1a(1) =9a(2) =81a(3) =153a(4) =891a(5) =1377a(6) =8019a(7) =3825a(8) =11025a(9) =15147a(10) =88209a(11) =31977a(12) =354375a(13) =99225a(14) =121275a(15) =95931a(16) =7144929a(17) =187425a(18) =893025a(19) =287793a(20) =1403325a(21) =1499553a(22) =1715175a(23) =675675a(24) =1091475a(25) =6024375a(26) =1576575a(27) =1686825a(28) =72335025a(29) =2027025