22897

Appears in sequences

• Numerators of continued fraction convergents to sqrt(318).at n=7A041600
• Starting positions of strings of 3 1's in the decimal expansion of Pi.at n=21A050209
• Numbers k > 1 such that, in base 6, k and k^2 contain the same digits in the same proportion.at n=9A061660
• Third row of Pascal-(1,7,1) array A081582.at n=27A081593
• a(n) = 648*n^2 - 72*n + 1.at n=5A154514
• a(n) = 2*prime(n)^2 - 1.at n=27A179262
• Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x=R, y<R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=12A212750
• Number of 4 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=24A224040
• Numbers n such that (n^n-2)/(n-2) is an integer.at n=28A242787
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 302", based on the 5-celled von Neumann neighborhood.at n=42A271158
• The number of distinct positions on an infinite chessboard reachable by the (3,4)-leaper in <= n moves.at n=20A297741
• Numbers of the form (k^2 - 2) / 2 where k - 1 and k + 1 are both odd composite numbers.at n=29A339480
• Irregular table read by rows, T(n, k) is the rank of the k-th Seidel permutation of {1,...,n}, permutations sorted in lexicographical order.at n=41A347600