A261233 - cp's OEIS frontend

A261233 a(n) = number of steps to reach 0 when starting from k = (3^n)-1 and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k).

n	a(n)
0	0
1	1
2	3
3	8
4	20
5	49
6	123
7	319
8	849
9	2294
10	6250
11	17112
12	47013
13	129605
14	358838
15	998805
16	2796093
17	7869800
18	22251147
19	63141639
20	179701239
21	512744599
22	1466635089
23	4205423895
24	12087339723
25	34816804310
26	100469592521
27	290336059740
28	839932833290
29	2432050970420
30	7047731703137
31	20440131344750
32	59334695322383
33	172409162871823
34	501489513690423
35	1460214792034791

[0, 1, 3, 8, 20, 49, 123, 319, 849, 2294, 6250, 17112, 47013, 129605, 358838, 998805, 2796093, 7869800, 22251147, 63141639, 179701239, 512744599, 1466635089, 4205423895, 12087339723, 34816804310, 100469592521, 290336059740, 839932833290, 2432050970420, 7047731703137, 20440131344750, 59334695322383, 172409162871823, 501489513690423, 1460214792034791]

cp's OEIS Frontend

A261233 a(n) = number of steps to reach 0 when starting from k = (3^n)-1 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