109549

Appears in sequences

• a(n) = (2*n+1)*(4*n^2+4*n+3)/3.at n=34A057813
• Sums of squared terms in rows of triangle A114172.at n=7A114175
• Number of n X 4 nonnegative integer arrays with upper left 0 and every value within 2 of its city block distance from the upper left and every value increasing by 0 or 1 with every step right or down.at n=9A252816