18220

Appears in sequences

• Coordination sequence for alpha-Mn, Position Mn3.at n=35A009952
• Numbers k such that k^3 has only even digits.at n=16A052004
• Interprimes which are of the form s*prime, s=20.at n=19A075295
• Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082351/A082352.at n=11A089424
• a(1)=1, a(n)=a(n-1)+n^3 if n odd, a(n)=a(n-1)+ n^4 if n is even.at n=10A140155
• a(n) = 25*n^2 - 5.at n=26A158446
• Number of 2 X 2 matrices having all elements in {-n,...n} and determinant 4.at n=32A209988
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape P; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=52A247706
• Numbers m such that each of p=6*m+1, q=6*p+1, r=6*q+1 and s=6*r+1 is prime.at n=24A263311
• Irregular table read by rows: Take a diagonal-edged (or diamond-shaped) checkerboard with all diagonals drawn, as in A333434. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.at n=19A333458