95589domain: NAppears in sequencesT(n,n-3), array T as in A054120.at n=28A054121Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982).at n=37A336658Tribonacci-Niven numbers (A352089) with a record gap to the next tribonacci-Niven number.at n=14A376029