A012465 - cp's OEIS frontend

A012465 cosh(arctan(x)arctan(x))=1+12/4!x^4-480/6!x^6+31248/8!x^8...

n	a(n)
0	1
1	0
2	12
3	-480
4	31248
5	-3160320
6	462297792
7	-92467554816
8	24237361774848
9	-8058187934539776
10	3312017870282345472
11	-1648428171351870627840
12	976764310209146448384000
13	-679332936418413117235200000

[1, 0, 12, -480, 31248, -3160320, 462297792, -92467554816, 24237361774848, -8058187934539776, 3312017870282345472, -1648428171351870627840, 976764310209146448384000, -679332936418413117235200000]

cp's OEIS Frontend

A012465 cosh(arctan(x)arctan(x))=1+12/4!x^4-480/6!x^6+31248/8!x^8...

Table of values

List of values

cp's OEIS Frontend

A012465 cosh(arctan(x)*arctan(x))=1+12/4!*x^4-480/6!*x^6+31248/8!*x^8...

Table of values

List of values

A012465 cosh(arctan(x)arctan(x))=1+12/4!x^4-480/6!x^6+31248/8!x^8...