30445

Appears in sequences

• a(n) = floor(10000*log(n)).at n=20A004243
• a(n) = 10000*log(n) rounded to nearest integer.at n=20A004244
• Numbers n such that if n = a U b (where U denotes concatenation) then sigma*(a) + sigma*(b) = abs(sigma*(n) - n), where sigma*(n) is the sum of the anti-divisors of n.at n=13A239686
• Capped binary boundary codes for holeless strictly non-overlapping polyhexes (all orientations and rotations included).at n=28A258002
• Capped binary boundary codes for fusenes (all orientations and rotations included).at n=28A258012