112928

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 21.at n=15A031699
• a(n) = 441n^2 + 2n.at n=15A158321
• The number of length n sequences on {0,1,2} such that there are an equal number of 0's and 1's or there are an equal number of 0's and 2's.at n=12A235320
• Number of (n+1)X(7+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.at n=12A253697
• Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 3 and no antidiagonal sum 3 and no row sum 0 and no column sum 0.at n=8A256744