Numbers k that divide 10^k + 9^k.

Terms

a(0) =1a(1) =19a(2) =361a(3) =6859a(4) =80161a(5) =130321a(6) =142253a(7) =231059a(8) =1523059a(9) =1555207a(10) =2476099a(11) =2702807a(12) =4390121a(13) =28938121a(14) =29548933a(15) =47045881a(16) =51353333a(17) =83412299a(18) =188190383a(19) =338199259a(20) =549824299a(21) =561429727a(22) =600165407a(23) =893871739a(24) =974837921