A013042 sec(sinh(x)+arcsin(x))=1+4/2!*x^2+96/4!*x^4+5664/6!*x^6+622720/8!*x^8...

1, 4, 96, 5664, 622720, 110002304, 28499801088, 10180961396480, 4796029025538048, 2880634827782397952, 2148613628413055418368, 1948442293941619438944256, 2111126262325896262110150656

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A317664 A062779 A077155 * A190196 A065140 A007106

Adjacent sequences: A013039 A013040 A013041 * A013043 A013044 A013045

Keyword

nonn

Author

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

Status

approved