48664

Appears in sequences

• Generalized sum of divisors function: third diagonal of A060047.at n=43A060046
• Numbers k > 1 such that, in base 5, k and k^2 contain the same digits in the same proportion.at n=19A061659
• A014486-indices of binary trees whose left and right subtree are identical.at n=27A083938
• Number of 2 X 2 matrices with all elements in {0,1,...,n} and positive even determinant.at n=19A210372
• G.f.: exp( Sum_{n>=1} x^n/n * Product_{k>=1} 1/(1 - x^(n*k)*(1 + x^k)^n) ).at n=15A218575
• Number of partitions of n where there are k^2+1 kinds of parts k.at n=11A363602