4976640
domain: N
Appears in sequences
- Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*12^j.at n=25A038242
- Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*9^j.at n=23A038287
- Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*8^j.at n=25A038298
- Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*4^j.at n=23A038330
- a(1) = 1, a(n) = a(n-1) times largest divisor of n <= n^(1/2).at n=24A072488
- Sum of the non-unitary divisors of A064115(n) (or of 1+A064115(n)).at n=26A103846
- Hankel transform of A098278.at n=3A174827
- The multiplicative Wiener index of the rooted tree with Matula-Goebel number n.at n=28A196061
- The multiplicative Wiener index of the rooted tree with Matula-Goebel number n.at n=37A196061
- Number of narcissistic group-separable preference profiles.at n=6A307416
- Number of double-closed subsets of {1..n}.at n=30A308546
- a(n) = Product_{k=1..n} k^(floor(n/k)^2).at n=5A345726