A108564 - cp's OEIS frontend

A108564 a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[a(n) + a(n-1) + a(n-2) + a(n-3)], where SORT places digits in ascending order and deletes 0's.

n	a(n)
0	0
1	1
2	1
3	2
4	4
5	8
6	15
7	29
8	56
9	18
10	118
11	122
12	134
13	239
14	136
15	136
16	456
17	679
18	147
19	1148
20	234
21	228
22	1577
23	1378
24	1347
25	345
26	4467
27	3577
28	3679
29	1268
30	11299
31	12389
32	23568
33	24458
34	11477
35	12789
36	22279
37	137
38	24668
39	35789
40	23788
41	23488
42	13377
43	24469
44	12258
45	23579

[0, 1, 1, 2, 4, 8, 15, 29, 56, 18, 118, 122, 134, 239, 136, 136, 456, 679, 147, 1148, 234, 228, 1577, 1378, 1347, 345, 4467, 3577, 3679, 1268, 11299, 12389, 23568, 24458, 11477, 12789, 22279, 137, 24668, 35789, 23788, 23488, 13377, 24469, 12258, 23579]

cp's OEIS Frontend

A108564 a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[a(n) + a(n-1) + a(n-2) + a(n-3)], where SORT places digits in ascending order and deletes 0's.

Table of values

List of values