61689

Appears in sequences

• Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.at n=8A196144
• Number of weak peaks in all peakless Motzkin paths of length n.at n=14A247289
• Number of primitive (period n) n-bead necklace structures using an infinite alphabet.at n=10A276547
• For any number n with runs in binary expansion (r_w, ..., r_0), let p(n) be the polynomial of a single indeterminate x where the coefficient of x^e is r_e for e = 0..w and otherwise 0, and let q be the inverse of p; a(n) = q(p(n)^2).at n=13A355654