A024248 Expansion of sin(tan(x)*x)/2.

0, 1, 4, -12, -2272, -166960, -13136448, -1177426880, -116571720704, -11452654888704, -669616618900480, 214088681811547136, 155062926684742508544, 76744341986122463531008, 36379718195920790292840448

Offset: 0

Author

R. H. Hardin

Keywords

• sign

Crossrefs

Cf. A009515.

Programs

Mathematica

Sin[ Tan[ x ]*x ]/2 (* Even Part *)

Extensions

Extended with signs Mar 1997