A269920 - cp's OEIS frontend

A269920 Triangle read by rows: T(n,f) is the number of rooted maps with n edges and f faces on an orientable surface of genus 0.

n	a(n)
0	1
1	1
2	1
3	2
4	5
5	2
6	5
7	22
8	22
9	5
10	14
11	93
12	164
13	93
14	14
15	42
16	386
17	1030
18	1030
19	386
20	42
21	132
22	1586
23	5868
24	8885
25	5868
26	1586
27	132
28	429
29	6476
30	31388
31	65954
32	65954
33	31388
34	6476
35	429
36	1430
37	26333
38	160648
39	442610
40	614404
41	442610
42	160648
43	26333
44	1430

[1, 1, 1, 2, 5, 2, 5, 22, 22, 5, 14, 93, 164, 93, 14, 42, 386, 1030, 1030, 386, 42, 132, 1586, 5868, 8885, 5868, 1586, 132, 429, 6476, 31388, 65954, 65954, 31388, 6476, 429, 1430, 26333, 160648, 442610, 614404, 442610, 160648, 26333, 1430]

cp's OEIS Frontend

A269920 Triangle read by rows: T(n,f) is the number of rooted maps with n edges and f faces on an orientable surface of genus 0.

Table of values

List of values