3189375
domain: N
Appears in sequences
- a(n) = (2*9^n + 3^n)/3.at n=7A082413
- Smallest number having exactly n divisors of the form 8*k + 3.at n=17A343105
- Smallest number having exactly n divisors of the form 8*k + 5.at n=17A343106
- a(n) is the least k such that A348172(k) = n or -1 if no such k exists.at n=4A348184
- a(n) is the least k that has exactly n divisors whose arithmetic derivative is odd.at n=35A363483
- a(n) is the least number with exactly n divisors of the form 4*k+1.at n=34A364584
- Number of nonisomorphic spanning trees of the triangular snake nC_3.at n=14A374721