3027600

Appears in sequences

• a(n) = (2*n*(n+1))^2.at n=29A060300
• Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.at n=26A258886
• Numbers k such that sigma(k) - 3k is prime.at n=24A306492
• Primitives exponential abundant numbers that are not primitives exponential unitary abundant.at n=25A391086
• Primitive exponential Zumkeller numbers that are not primitive exponential unitary Zumkeller numbers.at n=27A391091