46730

Appears in sequences

• Spiral sieve using Fibonacci numbers.at n=22A005623
• Number of 2-colorings of a 3 X n rectangle for which no subsquare has monochromatic corners.at n=6A133357
• Number of distinct values taken by 5th derivative of x^x^...^x (with n x's and parentheses inserted in all possible ways) at x=1.at n=27A199296
• Number A(n,k) of 2-colorings of a k X n rectangle such that no nontrivial subsquare has monochromatic corners; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=48A255256
• Number A(n,k) of 2-colorings of a k X n rectangle such that no nontrivial subsquare has monochromatic corners; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=51A255256
• Least number k such that the determinant of the symmetric Hankel matrix formed by its decimal digits is equal to n negated.at n=38A308208