A236453 - cp's OEIS frontend

A236453 Number of length n strings on the alphabet {0,1,2} of the form 0^i 1^j 2^k such that i,j,k>=0 and if i=1 then j=k.

n	a(n)
0	1
1	3
2	4
3	8
4	11
5	17
6	22
7	30
8	37
9	47
10	56
11	68
12	79
13	93
14	106
15	122
16	137
17	155
18	172
19	192
20	211
21	233
22	254
23	278
24	301
25	327
26	352
27	380
28	407
29	437
30	466
31	498
32	529
33	563
34	596
35	632
36	667
37	705
38	742
39	782
40	821
41	863
42	904
43	948
44	991
45	1037
46	1082
47	1130
48	1177
49	1227
50	1276
51	1328
52	1379
53	1433
54	1486
55	1542

[1, 3, 4, 8, 11, 17, 22, 30, 37, 47, 56, 68, 79, 93, 106, 122, 137, 155, 172, 192, 211, 233, 254, 278, 301, 327, 352, 380, 407, 437, 466, 498, 529, 563, 596, 632, 667, 705, 742, 782, 821, 863, 904, 948, 991, 1037, 1082, 1130, 1177, 1227, 1276, 1328, 1379, 1433, 1486, 1542]

cp's OEIS Frontend

A236453 Number of length n strings on the alphabet {0,1,2} of the form 0^i 1^j 2^k such that i,j,k>=0 and if i=1 then j=k.

Table of values

List of values