A013145 - OEIS

This site is supported by donations to The OEIS Foundation.

A013145

cos(tanh(x)+arctan(x))=1-4/2!*x^2+48/4!*x^4-1344/6!*x^6+68096/8!*x^8...

1, -4, 48, -1344, 68096, -5489024, 649853952, -106867367936, 23404867387392, -6602987646386176, 2335532843551916032, -1012790947054260453376, 528471932766276016930816 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A024255 A166231 A191952 * A013150 A011266 A197927` `Adjacent sequences: A013142 A013143 A013144 * A013146 A013147 A013148`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 17:11 EST 2012. Contains 205938 sequences.