63456

Appears in sequences

• Starting positions of strings of four 0's in the decimal expansion of Pi.at n=7A083598
• 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, 0), (-1, 0, -1), (0, -1, 1), (0, 1, 0), (1, -1, -1)}.at n=13A148009
• Numbers k such that lambda(k) = lambda(k+1).at n=42A173695
• Number of n X 2 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors.at n=12A183467
• Number of n X 1 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of elements above it, modulo 4.at n=12A239333
• Number of distinct lines passing through at least two points in a triangular grid of side n.at n=30A244504
• Number of n-length words on {0,1,2} in which 0 appears only in runs of length 2.at n=13A255115
• a(n) = 54*n^2 - 78*n + 36.at n=35A277983
• The second Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.2).at n=30A292345