A098273 - cp's OEIS frontend

A098273 Array by antidiagonals: Number of planar lattice walks of length 3n+2k starting at (0,0) and ending at (k,0), remaining in the first quadrant and using only NE,W,S steps.

n	a(n)
0	1
1	1
2	2
3	2
4	8
5	16
6	5
7	30
8	96
9	192
10	14
11	112
12	480
13	1408
14	2816
15	42
16	420
17	2240
18	8320
19	23296
20	46592
21	132
22	1584
23	10080
24	44800
25	153600
26	417792
27	835584
28	429
29	6006
30	44352
31	228480
32	913920
33	2976768
34	7938048
35	15876096
36	1430
37	22880
38	192192
39	1123584
40	5107200
41	19066880
42	59924480
43	157515776
44	315031552

[1, 1, 2, 2, 8, 16, 5, 30, 96, 192, 14, 112, 480, 1408, 2816, 42, 420, 2240, 8320, 23296, 46592, 132, 1584, 10080, 44800, 153600, 417792, 835584, 429, 6006, 44352, 228480, 913920, 2976768, 7938048, 15876096, 1430, 22880, 192192, 1123584, 5107200, 19066880, 59924480, 157515776, 315031552]

cp's OEIS Frontend

A098273 Array by antidiagonals: Number of planar lattice walks of length 3n+2k starting at (0,0) and ending at (k,0), remaining in the first quadrant and using only NE,W,S steps.

Table of values

List of values