A300729 - cp's OEIS frontend

A300729 Number of arrangements on a line of n finite closed intervals (possibly of zero length) with k distinct endpoints (n >= 1, 1 <= k <= 2*n).

n	a(n)
1	1
2	1
3	1
4	7
5	12
6	6
7	1
8	25
9	138
10	294
11	270
12	90
13	1
14	79
15	1056
16	5298
17	12780
18	16020
19	10080
20	2520
21	1
22	241
23	7050
24	70350
25	334710
26	875970
27	1335600
28	1184400
29	567000
30	113400
31	1
32	727
33	44472
34	817746
35	6849900
36	31500180
37	87348240
38	152643960
39	169533000
40	116235000
41	44906400
42	7484400

[1, 1, 1, 7, 12, 6, 1, 25, 138, 294, 270, 90, 1, 79, 1056, 5298, 12780, 16020, 10080, 2520, 1, 241, 7050, 70350, 334710, 875970, 1335600, 1184400, 567000, 113400, 1, 727, 44472, 817746, 6849900, 31500180, 87348240, 152643960, 169533000, 116235000, 44906400, 7484400]

cp's OEIS Frontend

A300729 Number of arrangements on a line of n finite closed intervals (possibly of zero length) with k distinct endpoints (n >= 1, 1 <= k <= 2*n).

Table of values

List of values