1937102445
domain: N
Appears in sequences
- a(n) = 5*3^n.at n=18A005030
- Third column of triangle A067402.at n=10A067403
- a(n) = (n+1)^n*binomial(n+2,2).at n=8A081132
- 9th binomial transform of (0,0,1,0,0,0,...).at n=10A081139
- a(0)=1, a(1)=5, a(n) = -3*a(n-1), n>1.at n=19A084244
- Numbers that set records in A133500.at n=36A133504
- a(n) is the smallest positive integer that is coprime to n and has n divisors.at n=37A136641
- a(n) = n^9*(n + 1)/2.at n=9A170783
- a(n) = (1/2!)*3^n*(n+3)*(n).at n=14A288835
- a(n) is the smallest positive integer divisible by exactly n nonpowers of 2.at n=37A327328
- Smallest m such that the m-th Lucas number has exactly n divisors that are also Lucas numbers.at n=38A356666