A013367 sec(sin(x)-arctan(x))=1+10/6!*x^6-1288/8!*x^8+152934/10!*x^10...

1, 0, 0, 10, -1288, 152934, -21890484, 4000052186, -926239082416, 266931734963214, -94074704256622668, 39914182012094267618, -20108103789380727679816, 11884006709783387983027670

Offset

0,4

Links

Table of n, a(n) for n=0..13.

Crossrefs

Sequence in context: A070065 A222793 A320959 * A013366 A013364 A013368

Adjacent sequences: A013364 A013365 A013366 * A013368 A013369 A013370

Keyword

sign

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Status

approved