A242352 - cp's OEIS frontend

A242352 Number T(n,k) of isoscent sequences of length n with exactly k descents; triangle T(n,k), n>=0, 0<=k<=n+2-ceiling(2*sqrt(n+1)), read by rows.

n	a(n)
0	1
1	1
2	2
3	4
4	1
5	9
6	6
7	21
8	29
9	2
10	51
11	124
12	28
13	127
14	499
15	241
16	10
17	323
18	1933
19	1667
20	216
21	1
22	835
23	7307
24	10142
25	2765
26	98
27	2188
28	27166
29	56748
30	27214
31	2637
32	22
33	5798
34	99841
35	299485
36	227847
37	44051
38	1546
39	2
40	15511
41	363980
42	1514445
43	1708700
44	563444
45	46947
46	570

[1, 1, 2, 4, 1, 9, 6, 21, 29, 2, 51, 124, 28, 127, 499, 241, 10, 323, 1933, 1667, 216, 1, 835, 7307, 10142, 2765, 98, 2188, 27166, 56748, 27214, 2637, 22, 5798, 99841, 299485, 227847, 44051, 1546, 2, 15511, 363980, 1514445, 1708700, 563444, 46947, 570]

cp's OEIS Frontend

A242352 Number T(n,k) of isoscent sequences of length n with exactly k descents; triangle T(n,k), n>=0, 0<=k<=n+2-ceiling(2*sqrt(n+1)), read by rows.

Table of values

List of values