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A258202
Natural numbers n that have the property that starting from k = n, the fixed point of the map k -> floor(tan(k)) is strictly positive, while the smallest number encountered during the iteration is strictly negative.
6
121, 143, 476, 498, 831, 853, 1076, 1186, 1208, 1541, 1563, 1786, 1896, 1918, 2251, 2273, 2606, 2628, 2961, 2983, 3316, 3338, 3561, 3671, 3693, 4026, 4048, 4381, 4403, 4736, 4758, 5091, 5113, 5336, 5446, 5468, 5801, 5823, 6156, 6178, 6511, 6533, 6866, 6888, 7221, 7243, 7576, 7598, 7821, 7931, 7953, 8286, 8308, 8641, 8663, 8996, 9018
OFFSET
1,1
COMMENTS
Numbers n for which A258021(n) > 0 and A258201(n) < 0.
LINKS
PROG
(Scheme, with Antti Karttunen's IntSeq-library)
(define A258202 (MATCHING-POS 1 1 (lambda (n) (and (> (A258021 n) 0) (< (A258201 n) 0)))))
CROSSREFS
Complement of A258203 in A258024.
Sequence in context: A062649 A206288 A287390 * A242372 A182072 A262514
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 26 2015
STATUS
approved