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A013458
cos(tan(x)-arctanh(x))=1-8064/10!*x^10-2838528/12!*x^12...
0
1, 0, 0, 0, 0, -8064, -2838528, -863070208, -280413765632, -103486230003712, -44246647746887680, -22012763373859241984, -12714213783118211448832, -8481868824110022304727040, -6494340221977598984831631360
OFFSET
0,6
CROSSREFS
Sequence in context: A234446 A318104 A013378 * A172775 A172843 A258541
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved