86995

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 45 ones.at n=16A031813
• Not necessarily symmetric n X 4 crossword puzzle grids.at n=4A034187
• The sequence of coefficients of a polynomial recursion: p(x,n)=If[Mod[n, 2] == 0, (x + 1)*p(x, n - 1), (x^2 + (2*n - 1)*x + 1)^Floor[n/2]] ( correction).at n=40A171146
• G.f.: 1 = Sum_{n>=0} a(n) * x^n * (1 - (n+1)*x)^3.at n=6A219779
• Numbers n such that 4n+1, 4n+3, 4n+7, 4n+9 and 4n+13 are prime.at n=13A254376
• Array read by antidiagonals: T(m,n) is the number of fixed polyominoes that have a width of m and height of n.at n=31A292357
• Array read by antidiagonals: T(m,n) is the number of fixed polyominoes that have a width of m and height of n.at n=32A292357