43700

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 22.at n=18A031700
• Number of self-avoiding closed walks from 0 of area n in strip Z X {0,1,2}.at n=13A038579
• a(n) = T(n)^2 - n^2, where T(n) is a triangular number.at n=20A085740
• Polynexus numbers of order 8.at n=7A088890
• a(n) = 361*n^2 + 19.at n=11A158592
• a(n) = 121*n^2 + n.at n=18A173267
• Primitive integer length of the side of an origin-centered square that contains inside its boundary a point with integer coordinates that is an integer distance from three of the four corners.at n=24A215365
• Number of (n+1) X (2+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=15A231390
• a(n) = Lucas(2*n) + 2^(n + 1) + 1.at n=10A366511
• Expansion of g.f. A(x) satisfying 0 = Sum_{n=-oo..+oo} x^n * A(x)^n * (1 - x^(n-1))^(n+1).at n=14A366731