22873

Appears in sequences

• Numbers whose set of base-9 digits is {3,4}.at n=39A032833
• Irregular triangle in which row n has the values of k>n such that Sum_{i=n..k} i^2 is a square.at n=62A184763
• The number of tilings of a 3 X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1.at n=5A254124
• The number of tilings of a 5 X n rectangle using integer length rectangles with at least one length of size 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1, 4 X 1, 5 X 1.at n=3A254126
• Number A(n,k) of tilings of a k X n rectangle using polyominoes of shape I; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=39A254414
• Number A(n,k) of tilings of a k X n rectangle using polyominoes of shape I; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=41A254414
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 417", based on the 5-celled von Neumann neighborhood.at n=33A272018
• Numbers k such that A339549(k) = A339549(k+1).at n=22A339550
• Triangle read by rows: numerators of the almost-Riordan array ( (-6*x - 3 - 3*sqrt(12*x^2 - 8*x + 1))/(8*x^2 - 3*x - 3 + (3*x - 3)*sqrt(12*x^2 - 8*x + 1)) | 6/(3*(1 - x)*sqrt(12*x^2 - 8*x + 1) - 8*x^2 + 3*x + 3), (1 - 4*x - sqrt(12*x^2 - 8*x + 1))/(2*x) ).at n=31A389739