239180661721domain: NAppears in sequencesSquare hex numbers.at n=5A006051Unsigned member r=-12 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=11A099270Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.at n=9A264092