A176291 - cp's OEIS frontend

A176291 A symmetrical triangle based on Narayana numbers and Eulerian numbers of type B: T(n, k) = 2 + A060187(n, k) - 2binomial(n, k)binomial(n+1, k)/(k+1).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	13
8	13
9	1
10	1
11	58
12	192
13	58
14	1
15	1
16	209
17	1584
18	1584
19	209
20	1
21	1
22	682
23	10335
24	23200
25	10335
26	682
27	1
28	1
29	2125
30	60267
31	258745
32	258745
33	60267
34	2125
35	1
36	1
37	6482
38	330942
39	2482938
40	4671488
41	2482938
42	330942
43	6482
44	1
45	1
46	19585
47	1755262
48	21702934
49	69402712
50	69402712
51	21702934
52	1755262
53	19585
54	1

[1, 1, 1, 1, 2, 1, 1, 13, 13, 1, 1, 58, 192, 58, 1, 1, 209, 1584, 1584, 209, 1, 1, 682, 10335, 23200, 10335, 682, 1, 1, 2125, 60267, 258745, 258745, 60267, 2125, 1, 1, 6482, 330942, 2482938, 4671488, 2482938, 330942, 6482, 1, 1, 19585, 1755262, 21702934, 69402712, 69402712, 21702934, 1755262, 19585, 1]

cp's OEIS Frontend

A176291 A symmetrical triangle based on Narayana numbers and Eulerian numbers of type B: T(n, k) = 2 + A060187(n, k) - 2binomial(n, k)binomial(n+1, k)/(k+1).

Table of values

List of values

cp's OEIS Frontend

A176291 A symmetrical triangle based on Narayana numbers and Eulerian numbers of type B: T(n, k) = 2 + A060187(n, k) - 2*binomial(n, k)*binomial(n+1, k)/(k+1).

Table of values

List of values

A176291 A symmetrical triangle based on Narayana numbers and Eulerian numbers of type B: T(n, k) = 2 + A060187(n, k) - 2binomial(n, k)binomial(n+1, k)/(k+1).