A228643 - cp's OEIS frontend

A228643 Triangle read by rows: T(n,1) = n * (n - 1) + 1 and for k: 1 < k <= n: T(n,k) = T(n,k-1) + T(n-1,k-1).

n	a(n)
1	1
2	3
3	4
4	7
5	10
6	14
7	13
8	20
9	30
10	44
11	21
12	34
13	54
14	84
15	128
16	31
17	52
18	86
19	140
20	224
21	352
22	43
23	74
24	126
25	212
26	352
27	576
28	928
29	57
30	100
31	174
32	300
33	512
34	864
35	1440
36	2368
37	73
38	130
39	230
40	404
41	704
42	1216
43	2080
44	3520
45	5888
46	91
47	164
48	294
49	524
50	928
51	1632
52	2848
53	4928
54	8448

[1, 3, 4, 7, 10, 14, 13, 20, 30, 44, 21, 34, 54, 84, 128, 31, 52, 86, 140, 224, 352, 43, 74, 126, 212, 352, 576, 928, 57, 100, 174, 300, 512, 864, 1440, 2368, 73, 130, 230, 404, 704, 1216, 2080, 3520, 5888, 91, 164, 294, 524, 928, 1632, 2848, 4928, 8448]

cp's OEIS Frontend

A228643 Triangle read by rows: T(n,1) = n * (n - 1) + 1 and for k: 1 < k <= n: T(n,k) = T(n,k-1) + T(n-1,k-1).

Table of values

List of values