309237645312
domain: N
Appears in sequences
- a(n) = n*4^(n-1).at n=18A002697
- Reciprocal of n terminates with an infinite repetition of digit 2. Multiples of 10 are omitted.at n=8A064561
- Third binomial transform of C(n+2,2).at n=17A081893
- Odd powers of 2 and 9 times odd powers of 2, sorted.at n=36A190787
- Denominators of the exponential expansion of (4/(log(1+x)))*(1 - 1/(1+x)^(1/4)).at n=17A285063
- Lesser of amicable numbers pair (m, n) such that n = H(m) and m = H(n) where H(n) = A074206(n) is the number of ordered factorizations of n.at n=4A318251
- a(n) is the least number whose divisors have a mean number of divisors that equals n.at n=36A374906