74688

Appears in sequences

• Number of 7 X 7 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.at n=32A156392
• Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 32.at n=5A156492
• Numbers k such that k divides 1 + Sum_{j=1..k} prime(j)^14.at n=41A232966
• Number of length 3+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=30A250168
• Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=7A298226
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=58A298230
• a(n) = n! * Sum_{k=1..n} ( Sum_{d|k} (-1)^(k/d + 1) ) /k.at n=7A356389