1062153

Appears in sequences

• a(n) = n^2*(2*n^2 - 1); also Sum_{k=0..n-1} (2k+1)^3.at n=27A002593
• a(n) = 2*3^(2*n)-3^n.at n=6A010035
• Hexagonal numbers whose number of divisors is also a hexagonal number.at n=15A116565
• Numbers that can be expressed as the sum of the first j integer numbers or the first k nonprime numbers, with j and k >=1.at n=5A154588
• Triangular numbers representable as t*p, where t>1 is a triangular number, p>1 is a prime power (A025475).at n=10A221563
• a(n) = A255304(2^n-1).at n=12A255442
• a(n) = n^2*(2*n^2 + (-1)^n).at n=27A275496