A301942
Expansion of e.g.f. arcsin(x)/cos(x) (odd powers only).
Original entry on oeis.org
1, 4, 44, 1016, 42384, 2908544, 306305856, 46659144832, 9760451385600, 2683733034474496, 936308392553036800, 403127865773461755904, 209562975305232836300800, 129255511221696545852424192, 93252273300325219683758915584, 77766048645578119241905858314240
Offset: 0
arcsin(x)/cos(x) = x/1! + 4*x^3/3! + 44*x^5/5! + 1016*x^7/7! + 42384*x^9/9! + ...
Cf.
A000182,
A000364,
A000795,
A001818,
A002084,
A003701,
A003702,
A012782,
A296741,
A302444,
A302542,
A302543.
-
nmax = 16; Table[(CoefficientList[Series[ArcSin[x]/Cos[x], {x, 0, 2 nmax + 1}], x] Range[0, 2 nmax + 1]!)[[n]], {n, 2, 2 nmax, 2}]
A302542
Expansion of e.g.f. arctan(x)/cos(x) (odd powers only).
Original entry on oeis.org
1, 1, 29, -139, 31737, -1824151, 313750293, -51584719523, 13137192234225, -3947317975733039, 1522475446731094285, -702509124781480897211, 389722900767594460770025, -253710144786166583863030983, 192285396891961478711402819077, -167564604997707653568802119363795
Offset: 0
arctan(x)/cos(x) = x/1! + x^3/3! + 29*x^5/5! - 139*x^7/7! + 31737*x^9/9! - 1824151*x^11/11! + ...
Cf.
A000182,
A000364,
A000795,
A002084,
A003701,
A003702,
A010050,
A012801,
A191003,
A301942,
A302444,
A302543.
-
nmax = 16; Table[(CoefficientList[Series[ArcTan[x]/Cos[x], {x, 0, 2 nmax + 1}], x] Range[0, 2 nmax + 1]!)[[n]], {n, 2, 2 nmax, 2}]
A302543
Expansion of e.g.f. arctanh(x)/cos(x) (odd powers only).
Original entry on oeis.org
1, 5, 69, 2001, 104073, 8723549, 1088372557, 190057979177, 44285819490065, 13267464006201781, 4964113699657822805, 2266816666007859759489, 1239999748307938170531225, 800189083150907165762837517, 601369618369661775955962338653, 520607107122686183781743903500505
Offset: 0
arctanh(x)/cos(x) = x/1! + 5*x^3/3! + 69*x^5/5! + 2001*x^7/7! + 104073*x^9/9! + ...
Cf.
A000182,
A000364,
A000795,
A002084,
A003701,
A003702,
A010050,
A012840,
A296743,
A301942,
A302444,
A302542.
-
nmax = 16; Table[(CoefficientList[Series[ArcTanh[x]/Cos[x], {x, 0, 2 nmax + 1}], x] Range[0, 2 nmax + 1]!)[[n]], {n, 2, 2 nmax, 2}]
Showing 1-3 of 3 results.