A177011 - cp's OEIS frontend

A177011 Define two triangular arrays by: B(0,0)=C(0,0)=1, B(0,r)=C(0,r)=0 for r>0, C(t,-1)=C(t,0); and for t,r >= 0, B(t+1,r)=C(t,r-1)+2C(t,r)-B(t,r), C(t+1,r)=B(t+1,r)+2B(t+1,r+1)-C(t,r). Sequence gives array B(t,r) read by rows.

n	a(n)
0	1
1	2
2	1
3	7
4	4
5	1
6	29
7	18
8	6
9	1
10	130
11	85
12	33
13	8
14	1
15	611
16	414
17	177
18	52
19	10
20	1
21	2965
22	2062
23	943
24	313
25	75
26	12
27	1
28	14726
29	10447
30	5023
31	1817
32	501
33	102
34	14
35	1
36	74443
37	53650
38	26818
39	10348
40	3152
41	749
42	133
43	16
44	1
45	381617
46	278568
47	143655
48	58305
49	19147
50	5080
51	1065
52	168
53	18
54	1

[1, 2, 1, 7, 4, 1, 29, 18, 6, 1, 130, 85, 33, 8, 1, 611, 414, 177, 52, 10, 1, 2965, 2062, 943, 313, 75, 12, 1, 14726, 10447, 5023, 1817, 501, 102, 14, 1, 74443, 53650, 26818, 10348, 3152, 749, 133, 16, 1, 381617, 278568, 143655, 58305, 19147, 5080, 1065, 168, 18, 1]

cp's OEIS Frontend

A177011 Define two triangular arrays by: B(0,0)=C(0,0)=1, B(0,r)=C(0,r)=0 for r>0, C(t,-1)=C(t,0); and for t,r >= 0, B(t+1,r)=C(t,r-1)+2C(t,r)-B(t,r), C(t+1,r)=B(t+1,r)+2B(t+1,r+1)-C(t,r). Sequence gives array B(t,r) read by rows.

Table of values

List of values