a(n) is the least integer m > 1 such that n is the largest number of identical digits that can end m^k for positive integer k.
A244364
a(n) is the least integer m > 1 such that n is the largest number of identical digits that can end m^k for positive integer k.
Terms
- a(0) =3a(1) =4a(2) =2a(3) =33a(4) =17a(5) =319a(6) =639a(7) =1279a(8) =2559a(9) =5119a(10) =10239a(11) =20479a(12) =40959a(13) =81919a(14) =163839a(15) =327679a(16) =655359a(17) =1310719a(18) =2621439a(19) =5242879a(20) =10485759a(21) =20971519a(22) =41943039a(23) =83886079a(24) =167772159a(25) =335544319a(26) =671088639
External references
- oeis: A244364