108030
domain: N
Appears in sequences
- a(n) = 4394*n - 1820.at n=24A156627
- a(n) = (n - 1)*(4*n^2 - 8*n + 5).at n=30A317297
- Numbers k such that k and k+1 have at least 4 but not both exactly 4 distinct prime factors.at n=39A321494
- Number of partitions of [2n] into pairs whose sums and differences are primes.at n=16A342136
- G.f. A(x) satisfies A(x) = 1 / ((1 + x) * (1 - x * A(x^3))).at n=52A367693