Base 4 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-4 digits, for some k.
A162219
Base 4 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-4 digits, for some k.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =3a(4) =8a(5) =9a(6) =28a(7) =29a(8) =32a(9) =33a(10) =35a(11) =43a(12) =55a(13) =62a(14) =83a(15) =128a(16) =129a(17) =243a(18) =512a(19) =513a(20) =922a(21) =2048a(22) =2049a(23) =2316a(24) =2317a(25) =2444a(26) =2445a(27) =2571a(28) =2699a(29) =7330
External references
- oeis: A162219