Number of nonnegative integers with property that their base 7/3 expansion (see A024640) has n digits.
A245417
Number of nonnegative integers with property that their base 7/3 expansion (see A024640) has n digits.
Terms
- a(0) =7a(1) =14a(2) =28a(3) =70a(4) =161a(5) =378a(6) =882a(7) =2058a(8) =4802a(9) =11200a(10) =26138a(11) =60984a(12) =142296a(13) =332024a(14) =774725a(15) =1807694a(16) =4217948a(17) =9841881a(18) =22964389a(19) =53583572a(20) =125028337a(21) =291732784a(22) =680709834a(23) =1588322946a(24) =3706086874a(25) =8647536037a(26) =20177584084a(27) =47081029534a(28) =109855735577a(29) =256330049682
External references
- oeis: A245417