A237671 - cp's OEIS frontend

A237671 Let m_n denote the number which is obtained from n-base representation of m if its digits are written in nondecreasing order; then a(n) is the smallest period of the sequence which is defined by the recurrence b(0)=0, b(1)=1, b(k)=(b(k-1) + b(k-2))_n, for k>=2, or a(n)=0, if there is no such period.

n	a(n)
2	1
3	3
4	16
5	6
6	20
7	24
8	16
9	36
10	120
11	300
12	20
13	288
14	28
15	192
16	200
17	552
18	180
19	192
20	180
21	1380
22	224
23	60
24	1728
25	912
26	3800
27	756
28	576
29	1776
30	4102
31	15480
32	3540
33	1344
34	10800
35	14328
36	800
37	2304
38	1520
39	1890
40	1232
41	11280
42	9040
43	31152
44	49544
45	3660
46	6360
47	3696
48	13248
49	21408

[1, 3, 16, 6, 20, 24, 16, 36, 120, 300, 20, 288, 28, 192, 200, 552, 180, 192, 180, 1380, 224, 60, 1728, 912, 3800, 756, 576, 1776, 4102, 15480, 3540, 1344, 10800, 14328, 800, 2304, 1520, 1890, 1232, 11280, 9040, 31152, 49544, 3660, 6360, 3696, 13248, 21408]

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