51938

Appears in sequences

• a(n) = 4*n^4 + 24*n^3 + 84*n^2 + 144*n + 98.at n=9A160828
• Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.at n=10A252300
• Cardinality of the set of equivalence classes of the set X_n of finite integer sequences {x_1 = 0, x_2, ..., x_n} satisfying |x_k - x_{k+1}| = 1, where two such sequences are deemed equivalent if they are permutations of each other.at n=21A254007