OFFSET
1,4
MATHEMATICA
Floor[Tan[Pi/2 (1-1/Range[80])]] (* Harvey P. Dale, Jul 25 2013 *)
PROG
(PARI) a(n) = floor(tan((1 - 1/n)*Pi/2)) \\ Michel Marcus, Mar 23 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved