233233domain: NAppears in sequencesNumbers of the form 6*k+1 that use only digits 2 and 3.at n=13A152834List of imprimitive words over the alphabet {2,3}.at n=14A213974Non-primitive words on {1,2,3}.at n=39A239018Concatenation of the n-th Fibonacci number with itself.at n=12A246554