A266240 - cp's OEIS frontend

A266240 Triangle read by rows: T(n,g) is the number of rooted 2n-face triangulations in an orientable surface of genus g.

n	a(n)
0	1
1	4
2	1
3	32
4	28
5	336
6	664
7	105
8	4096
9	14912
10	8112
11	54912
12	326496
13	396792
14	50050
15	786432
16	7048192
17	15663360
18	6722816
19	11824384
20	150820608
21	544475232
22	518329776
23	56581525
24	184549376
25	3208396800
26	17388675072
27	30117189632
28	11100235520
29	2966845440

[1, 4, 1, 32, 28, 336, 664, 105, 4096, 14912, 8112, 54912, 326496, 396792, 50050, 786432, 7048192, 15663360, 6722816, 11824384, 150820608, 544475232, 518329776, 56581525, 184549376, 3208396800, 17388675072, 30117189632, 11100235520, 2966845440]

cp's OEIS Frontend

A266240 Triangle read by rows: T(n,g) is the number of rooted 2n-face triangulations in an orientable surface of genus g.

Table of values

List of values