A330509 - cp's OEIS frontend

A330509 Triangle read by rows: T(n,k) is the number of 4-ary strings of length n with k indispensable digits, with 0 <= k <= n.

n	a(n)
0	1
1	1
2	3
3	1
4	9
5	6
6	1
7	19
8	34
9	10
10	1
11	34
12	115
13	91
14	15
15	1
16	55
17	301
18	445
19	201
20	21
21	1
22	83
23	672
24	1582
25	1338
26	392
27	28
28	1
29	119
30	1344
31	4600
32	6174
33	3410
34	700
35	36
36	1
37	164
38	2478
39	11623
40	22548
41	19784
42	7723
43	1170
44	45
45	1
46	219
47	4290
48	26452
49	69834
50	88428
51	55009
52	15999
53	1857
54	55

[1, 1, 3, 1, 9, 6, 1, 19, 34, 10, 1, 34, 115, 91, 15, 1, 55, 301, 445, 201, 21, 1, 83, 672, 1582, 1338, 392, 28, 1, 119, 1344, 4600, 6174, 3410, 700, 36, 1, 164, 2478, 11623, 22548, 19784, 7723, 1170, 45, 1, 219, 4290, 26452, 69834, 88428, 55009, 15999, 1857, 55]

cp's OEIS Frontend

A330509 Triangle read by rows: T(n,k) is the number of 4-ary strings of length n with k indispensable digits, with 0 <= k <= n.

Table of values

List of values