73476domain: NAppears in sequencesNumbers occurring twice in A068627.at n=39A068628Number of right triangles on a (n+1)X8 grid.at n=27A18981227-gonal pyramidal numbers: a(n) = n*(n+1)*(25*n-22)/6.at n=26A256647First elements of maximal isospectral chains of length 3.at n=9A335082