27785
domain: N
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 63.at n=35A020402
- Composite numbers whose prime factors contain no digits other than 5 and 7.at n=33A036320
- Number of partitions satisfying cn(2,5) <= cn(1,5) + cn(4,5) and cn(3,5) <= cn(1,5) + cn(4,5).at n=39A039891
- a(n) = T(0,n)+T(1,n-1)+...+T(n,0), array T given by A048505.at n=9A048514