481624domain: NAppears in sequencesNumber of conjugated cycles composed of six carbons in (n,n)-nanotubes in terms of the number of naphthalene units.at n=10A121254Collatz trajectory starting at 3711.at n=24A179623a(n) is the largest value in the '3x+1' trajectory of starting points producing a record number of steps.at n=24A380138