101285579domain: NPropertiesPrimalityPrimeyesAppears in sequencesFibonacci bisection minus powers of 2.at n=20A139209a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = -1, a(1) = -1, a(2) = 0, a(3) = 1.at n=36A295731Prime numbersat n=5831225