A369992 - cp's OEIS frontend

A369992 Irregular triangle read by rows: T(n,k) = (2^floor(n/2)+k)-th numerator coefficient of the polynomial q_n used to parametrize the canonical stribolic iterates h_n (of order 1), for n=0,1,2,... and 0 <= k <= A000045(n+1) - 2^floor(n/2).

n	a(n)
0	1
1	-1
2	1
3	-3
4	2
5	5
6	-4
7	-35
8	28
9	70
10	-100
11	35
12	3575
13	-5720
14	-6292
15	19240
16	-14300
17	3520
18	-13856700
19	22170720
20	24387792
21	-74574240
22	217088300
23	-401631120
24	-382444920
25	2019752592
26	-1656568485
27	-1470440400
28	3671101720
29	-2832601200
30	1025395800
31	-147804800

[1, -1, 1, -3, 2, 5, -4, -35, 28, 70, -100, 35, 3575, -5720, -6292, 19240, -14300, 3520, -13856700, 22170720, 24387792, -74574240, 217088300, -401631120, -382444920, 2019752592, -1656568485, -1470440400, 3671101720, -2832601200, 1025395800, -147804800]

cp's OEIS Frontend

A369992 Irregular triangle read by rows: T(n,k) = (2^floor(n/2)+k)-th numerator coefficient of the polynomial q_n used to parametrize the canonical stribolic iterates h_n (of order 1), for n=0,1,2,... and 0 <= k <= A000045(n+1) - 2^floor(n/2).

Table of values

List of values