37760

Appears in sequences

• a(1) = 1+2-3 = 0, a(2) = 4+5+6-7 = 8, a(3) = 8+9+10+11-12 = 26, a(4) = 13+14+15+16+17-18 = 57, ...at n=40A111694
• Number of 6 X 6 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n.at n=11A156388
• Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 11.at n=3A156453
• a(n) = n! modulo n*(n+1)*(n+2)/3.at n=58A175624
• a(n) is the optimal wire-length for an n X n grid.at n=34A195647
• Irregular triangle T(n,k) read by rows: The number of tilings of the n X n board by 1 X 1 and k 3 X 3 squares, n >= 0, k >= 0.at n=42A276171
• Numbers whose prime indices and prime signature have the same mean.at n=28A359903