81764

Appears in sequences

• Expansion of g.f. x*(-1-x-3*x^2-x^3+2*x^5)/((2*x^3+x^2-1)*(x^4+1)).at n=28A107851
• Number of n X n arrays of squares of integers summing to 39 with every element equal to at least one neighbor.at n=2A146554