49353213
domain: N
Appears in sequences
- a(n) = 16*a(n-1) - a(n-2) with a(0) = 0, a(1) = 3.at n=7A001080
- Denominators of continued fraction convergents to sqrt(7).at n=27A041009
- Denominators of continued fraction convergents to sqrt(28).at n=13A041045
- Numbers k such that 7*k^2 = floor(k*sqrt(7)*ceiling(k*sqrt(7))).at n=13A084069
- Square root of floor[A055859(n)/7].at n=22A204517
- Denominators of the other-side convergents to sqrt(7).at n=26A259596
- Denominators of the continued fraction convergents to sqrt(7)/2.at n=13A294973