Array read by antidiagonals: T(k,n) is the least positive integer whose sum of base-2 digits is k and sum of base-3 digits is n, or -1 if there is none.
A375258
Array read by antidiagonals: T(k,n) is the least positive integer whose sum of base-2 digits is k and sum of base-3 digits is n, or -1 if there is none.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =-1a(4) =6a(5) =81a(6) =8a(7) =5a(8) =28a(9) =27a(10) =-1a(11) =20a(12) =7a(13) =30a(14) =2187a(15) =128a(16) =17a(17) =14a(18) =15a(19) =244a(20) =243a(21) =-1a(22) =68a(23) =25a(24) =46a(25) =31a(26) =246a(27) =-1a(28) =512a(29) =8193
External references
- oeis: A375258