319145domain: NAppears in sequencesNumbers k such that phi(k) is equal to A008473(k-1).at n=21A039780Partial sums of A007587.at n=28A051799Number of reduced words of length n in the Weyl group B_31.at n=5A161977Number of reduced words of length n in the Weyl group D_31.at n=5A162378