-514228

Appears in sequences

• a(n) = 0^n + 1 - F(n-1)^2 - F(n)^2, where F = A000045.at n=15A186025
• First differences of A116697.at n=27A186679
• a(n) = (-1)^n * A000045(n) + 1.at n=29A355020