129960
domain: N
Appears in sequences
- a(n) = n*(n-1)^2*(n-2).at n=18A047928
- Number of Go games with exactly n moves.at n=2A048289
- a(n) = (n-th prime)^4-(n-th prime)^2.at n=7A138402
- 8000n - 6040.at n=16A157627
- Number of reduced words of length n in Coxeter group on 20 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=4A162806
- Oblong numbers that are the product of two oblong numbers.at n=23A188660
- Crossing number of the n-crown graph (conjectured).at n=39A307182
- Oblong numbers that are products of smaller oblong numbers.at n=29A374374
- The least totient number k with exactly n solutions to the equation phi(x) = k, where all the solutions are nontotient numbers (A007617).at n=22A378510
- The second Jordan totient function applied to the powerful numbers: a(n) = A007434(A001694(n)).at n=30A379716
- The second Jordan totient function applied to the squares.at n=18A379833