18373

Appears in sequences

• Number of one-sided triangular polyominoes (n-iamonds) with n cells; turning over not allowed, holes are allowed.at n=12A006534
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 78 ones.at n=18A031846
• Number of partitions of n with equal number of parts congruent to each of 1 and 2 (mod 4).at n=51A035543
• T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=38A240760
• Number of 3Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=6A240762
• The number of distinct positions on an infinite chessboard reachable by the (3,4)-leaper in <= n moves.at n=18A297741
• Starhex honeycomb numbers: a(n) = 13 + 60*n + 60*n^2.at n=17A332243