A263247 - cp's OEIS frontend

A263247 Expansion of e.g.f.: rcos(rx) / sqrt(1 + cos(r*x)^2) where r = sqrt(2), even terms only.

n	a(n)
0	1
1	-1
2	-7
3	-49
4	1457
5	148799
6	6409193
7	-436948849
8	-155175606943
9	-18245982604801
10	1864031151256793
11	1627915037217907151
12	390178889220670506257
13	-46784571591411151243201
14	-89306450512551172914577207
15	-37461031331532428265812712049
16	4204976347690709918899169381057
17	17814701962096793952255775890393599

[1, -1, -7, -49, 1457, 148799, 6409193, -436948849, -155175606943, -18245982604801, 1864031151256793, 1627915037217907151, 390178889220670506257, -46784571591411151243201, -89306450512551172914577207, -37461031331532428265812712049, 4204976347690709918899169381057, 17814701962096793952255775890393599]

cp's OEIS Frontend

A263247 Expansion of e.g.f.: rcos(rx) / sqrt(1 + cos(r*x)^2) where r = sqrt(2), even terms only.

Table of values

List of values

cp's OEIS Frontend

A263247 Expansion of e.g.f.: r*cos(r*x) / sqrt(1 + cos(r*x)^2) where r = sqrt(2), even terms only.

Table of values

List of values

A263247 Expansion of e.g.f.: rcos(rx) / sqrt(1 + cos(r*x)^2) where r = sqrt(2), even terms only.