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A024252 Expansion of tan(x)*tan(tanh(x))/2. 0
0, 1, 4, 24, 1088, 36352, 1283584, 160269312, 11824283648, 1434982481920, 275376204414976, 40808962274623488, 10384927347565395968, 2724691062936548933632, 799682075020079191293952 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MATHEMATICA
Tan[ x ]*Tan[ Tanh[ x ] ]/2 (* Even Part *)
CROSSREFS
Sequence in context: A009043 A024251 A193484 * A368141 A368144 A303131
KEYWORD
nonn
AUTHOR
EXTENSIONS
Extended and signs tested 03/97.
STATUS
approved

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Last modified February 29 14:39 EST 2024. Contains 370425 sequences. (Running on oeis4.)