A342968 - cp's OEIS frontend

A342968 Irregular triangle read by rows: T(n,k) is the number of n+2-sided polygons with the property that one makes k turns on itself while following its edges.

n	a(n)
0	1
1	0
2	1
3	2
4	1
5	5
6	6
7	1
8	24
9	28
10	8
11	119
12	183
13	57
14	1
15	832
16	1209
17	432
18	47
19	6255
20	9514
21	3760
22	630
23	1
24	54380
25	82636
26	36352
27	7828
28	244
29	515284
30	812714
31	383648
32	94997
33	7756
34	1
35	5454624
36	8727684
37	4377888
38	1243482
39	153536
40	1186

[1, 0, 1, 2, 1, 5, 6, 1, 24, 28, 8, 119, 183, 57, 1, 832, 1209, 432, 47, 6255, 9514, 3760, 630, 1, 54380, 82636, 36352, 7828, 244, 515284, 812714, 383648, 94997, 7756, 1, 5454624, 8727684, 4377888, 1243482, 153536, 1186]

cp's OEIS Frontend

A342968 Irregular triangle read by rows: T(n,k) is the number of n+2-sided polygons with the property that one makes k turns on itself while following its edges.

Table of values

List of values