25257

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 82 ones.at n=33A031850
• Equal count of primes congruent to 1 mod 4 and 3 mod 4 associated with primes in A007351 (the zero beginning the sequence indicates the prime 2).at n=32A092198
• a(n) = 49n^2 - 28n - 20.at n=22A118058
• Maximum number of points visible from some point in a cubic n x n x n lattice.at n=30A141227
• Number of n X 7 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally.at n=35A188864
• Number of 0..2 arrays of length n with each element differing from at least one neighbor by 1 or less.at n=9A221591
• Number of (n+1) X 6 0..2 matrices with each 2 X 2 subblock idempotent.at n=13A224673
• Number of partitions of n such that 2*(greatest part) < (number of parts).at n=48A237751
• a(n) = (a(n-4) + a(n-1) * a(n-7)) / a(n-8), a(0) = a(1) = ... = a(7) = 1.at n=30A275174
• Number of n X 3 0..1 arrays with each 1 adjacent to 0 or 3 king-move neighboring 1's.at n=8A295913
• Ranks of {2,3}-power towers with neither consecutive 2's nor consecutive 3's; see Comments.at n=27A299322
• a(n) = s(n,n) + s(n,n-1) + s(n,n-2), where s(n,k) are the unsigned Stirling numbers of the first kind (see A132393).at n=21A308305
• Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from a 2 x n square grid of points using only a compass.at n=59A359862