196330
domain: N
Appears in sequences
- a(n) = ceiling(n*phi^19), where phi is the golden ratio, A001622.at n=21A004974
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 98.at n=1A031686
- Number of nonempty subsets of {1, ..., n} containing no three cyclically successive elements.at n=20A306357