46128

Appears in sequences

• a(1) = 1, a(2) = 16, a(n) = lcm(48, 2n^2) for n>2.at n=30A032444
• Partial sums of n 3-spaced triangular numbers beginning with t(2), e.g., a(2) = t(2) + t(5) = 3 + 15 = 18.at n=30A085789
• A transform of the Catalan numbers.at n=33A157125
• Integer areas of integer-sided triangles such that the distance between the incenter and the circumcenter is an integer.at n=39A231174
• Numbers whose sum of proper square divisors is a palindrome in base 10 having at least two digits.at n=7A232892
• Numbers whose sum of square divisors is a palindrome in base 10 having at least two digits.at n=2A232893
• Number of partitions of n*(n-1)/2 into at most three parts.at n=38A274233
• a(n) is the smallest dividend m of the Euclidean division m = d*n + r such that m/d = r/n.at n=31A335717
• Numbers k such that k and k+2 are both unitary untouchable numbers (A063948).at n=5A357323
• Sum of the divisors of 11^n-1.at n=3A366684
• G.f. A(x) satisfies A(x) = 1 + x*(1-x^2)^2*A(x)^2.at n=13A389893