Odd composite numbers n, such that n, n+d, n*d and n/d are all odious (A000069) for every divisor d of n.
A231558
Odd composite numbers n, such that n, n+d, n*d and n/d are all odious (A000069) for every divisor d of n.
Terms
- a(0) =217a(1) =511a(2) =889a(3) =949a(4) =1957a(5) =2041a(6) =2263a(7) =2413a(8) =2869a(9) =3113a(10) =3133a(11) =3481a(12) =3991a(13) =5201a(14) =5761a(15) =7813a(16) =7903a(17) =8071a(18) =8137a(19) =8773a(20) =10519a(21) =10609a(22) =11377a(23) =11879a(24) =12191a(25) =12313a(26) =12871a(27) =15127a(28) =15223a(29) =16177
External references
- oeis: A231558