170586
domain: N
Appears in sequences
- Numbers k such that 2^k == -1 (mod k-1).at n=10A055685
- Numbers k such that 8^k == -1 (mod k-1).at n=22A055691
- Look at all numbers formed by multiplying the parts in a partition of n; a(n) = maximal such number which is divisible by n.at n=38A069188
- Expansion of x(3-x^2)/(1-3x).at n=11A114982
- Monotonic ordering of nonnegative differences 3^i-9^j, for 40>=i>=0, j>=0.at n=32A192157