4356619

Appears in sequences

• a(n) = a(n-1) + a(n-2) - 1.at n=32A001588
• a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.at n=33A066983
• a(n) = 2*(A000045(n)-(n mod 2)) + 1 + (n mod 2).at n=32A166012
• Constant term in the reduction by (x^2 -> x + 1) of the polynomial p(n,x) defined below at Comments.at n=17A192908
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 2, a(1) = 1, a(2) = 2, a(3) = 1.at n=33A295686