a(n) = number of steps to reach (3^n)-1 when starting from k = (3^(n+1))-1 and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k).
A261234
a(n) = number of steps to reach (3^n)-1 when starting from k = (3^(n+1))-1 and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k).
Terms
- a(0) =1a(1) =2a(2) =5a(3) =12a(4) =29a(5) =74a(6) =196a(7) =530a(8) =1445a(9) =3956a(10) =10862a(11) =29901a(12) =82592a(13) =229233a(14) =639967a(15) =1797288a(16) =5073707a(17) =14381347a(18) =40890492a(19) =116559600a(20) =333043360a(21) =953890490a(22) =2738788806a(23) =7881915828a(24) =22729464587a(25) =65652788211a(26) =189866467219a(27) =549596773550
External references
- oeis: A261234