111034

Appears in sequences

• a(n) = 2A(n)/C(n) where A(n) = A180874(n) and C(n) = Catalan(n) = A000108(n).at n=7A188664
• Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=12A241430
• Numbers n such that the sum of the triangular numbers T(n) and T(n+1) is equal to a heptagonal number H(m) for some m.at n=5A251927