A241907 - cp's OEIS frontend

A241907 a(n) = floor( Catalan(2*n) / Catalan(n)^2 ).

n	a(n)
0	1
1	2
2	3
3	5
4	7
5	9
6	11
7	14
8	17
9	20
10	23
11	26
12	29
13	33
14	36
15	40
16	44
17	48
18	52
19	56
20	60
21	65
22	69
23	74
24	78
25	83
26	88
27	93
28	98
29	103
30	108
31	114
32	119
33	124
34	130
35	136
36	141
37	147
38	153
39	159
40	165
41	171
42	177
43	183
44	189
45	196
46	202
47	209
48	215
49	222
50	229
51	235
52	242
53	249
54	256
55	263
56	270
57	277
58	284
59	292
60	299
61	306
62	314
63	321
64	329
65	336
66	344
67	352
68	360
69	367
70	375
71	383
72	391
73	399
74	408
75	416
76	424
77	432
78	441
79	449
80	457
81	466
82	474
83	483
84	492
85	500
86	509
87	518
88	527
89	536
90	545
91	554
92	563
93	572
94	581
95	590
96	599
97	609
98	618
99	627
100	637
101	646
102	656
103	665
104	675
105	685
106	694
107	704
108	714
109	724
110	734
111	744
112	753
113	764
114	774
115	784
116	794
117	804
118	814
119	825
120	835
121	845
122	856
123	866
124	877
125	887
126	898
127	908
128	919
129	930
130	940
131	951
132	962
133	973
134	984
135	995
136	1006

[1, 2, 3, 5, 7, 9, 11, 14, 17, 20, 23, 26, 29, 33, 36, 40, 44, 48, 52, 56, 60, 65, 69, 74, 78, 83, 88, 93, 98, 103, 108, 114, 119, 124, 130, 136, 141, 147, 153, 159, 165, 171, 177, 183, 189, 196, 202, 209, 215, 222, 229, 235, 242, 249, 256, 263, 270, 277, 284, 292, 299, 306, 314, 321, 329, 336, 344, 352, 360, 367, 375, 383, 391, 399, 408, 416, 424, 432, 441, 449, 457, 466, 474, 483, 492, 500, 509, 518, 527, 536, 545, 554, 563, 572, 581, 590, 599, 609, 618, 627, 637, 646, 656, 665, 675, 685, 694, 704, 714, 724, 734, 744, 753, 764, 774, 784, 794, 804, 814, 825, 835, 845, 856, 866, 877, 887, 898, 908, 919, 930, 940, 951, 962, 973, 984, 995, 1006]

cp's OEIS Frontend

A241907 a(n) = floor( Catalan(2*n) / Catalan(n)^2 ).

Table of values

List of values