63734domain: NAppears in sequencesNumber of reduced words of length n in the Weyl group B_22.at n=5A161900Number of reduced words of length n in the Weyl group D_22.at n=5A162364Numbers k such that (142*10^k - 7)/9 is prime.at n=22A282256Starts of runs of 3 consecutive tribonacci-Niven numbers (A352089).at n=28A352091