A261232 - cp's OEIS frontend

A261232 a(n) = number of steps to reach 0 when starting from k = 3^n and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k).

n	a(n)
0	1
1	2
2	4
3	9
4	21
5	50
6	124
7	320
8	850
9	2295
10	6251
11	17113
12	47014
13	129606
14	358839
15	998806
16	2796094
17	7869801
18	22251148
19	63141640
20	179701240
21	512744600
22	1466635090
23	4205423896
24	12087339724
25	34816804311
26	100469592522
27	290336059741
28	839932833291
29	2432050970421
30	7047731703138
31	20440131344751
32	59334695322384
33	172409162871824
34	501489513690424

[1, 2, 4, 9, 21, 50, 124, 320, 850, 2295, 6251, 17113, 47014, 129606, 358839, 998806, 2796094, 7869801, 22251148, 63141640, 179701240, 512744600, 1466635090, 4205423896, 12087339724, 34816804311, 100469592522, 290336059741, 839932833291, 2432050970421, 7047731703138, 20440131344751, 59334695322384, 172409162871824, 501489513690424]

cp's OEIS Frontend

A261232 a(n) = number of steps to reach 0 when starting from k = 3^n and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k).

Table of values

List of values