OFFSET
0
COMMENTS
Periodic with period length 61. - Ray Chandler, Apr 03 2017
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1).
MATHEMATICA
CoefficientList[Series[1/Cyclotomic[61, x], {x, 0, 200}], x]
PROG
(Magma) &cat[[n le 2 select -(-1)^(n) else 0: n in [1..61]]: m in [1..4]];
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Vincenzo Librandi, Apr 04 2014
STATUS
approved