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A013446
cosh(tan(x)-arctan(x))=1+160/6!*x^6-1792/8!*x^8+484224/10!*x^10...
0
1, 0, 0, 160, -1792, 484224, -30840832, 7718963200, -1315838558208, 426971596029952, -136067874243248128, 61019499461102272512, -30246038986591439945728, 18590454932996390870056960
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OFFSET
0,4
LINKS
Table of n, a(n) for n=0..13.
CROSSREFS
Sequence in context:
A281404
A127409
A013447
*
A013444
A013448
A234650
Adjacent sequences:
A013443
A013444
A013445
*
A013447
A013448
A013449
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved
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Last modified September 3 23:03 EDT 2024. Contains 375679 sequences. (Running on oeis4.)