109536

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 1), (0, 1, 1), (1, 0, 0), (1, 1, -1)}.at n=9A150235
• The Szeged index of a benzenoid consisting of a linear chain of n hexagons.at n=18A245830
• Triangle read by rows: T(n,m) is the number of length n decorated permutations avoiding the word 0^m = 0...0 of m 0's, where 1 <= m <= n.at n=33A334156
• Number of irreducible, unrooted, unoriented self-avoiding chains of length n for the square lattice.at n=14A334325
• a(n) is the determinant of the 2 X 2 matrix whose entries (when read by rows) are the n-th primes congruent to 1, 3, 5, 7 mod 8 respectively.at n=29A337145
• Triangle read by rows. T(n, k) = Sum_{j=0..k} (n!/j!).at n=41A367962