reinhard.zumkeller@gmail.com
                                              July 14 2008


               Logical Convolutions in the OEIS
               ================================


           x(n) = Op2{k Op1 (n-k): 0 <= k <= n}
                  with Op1, Op2 in {OR, AND, XOR}.


          +-------------+-------------+-------------+
    \ Op1 !             !             !             !
     \    !       OR    !      AND    !      XOR    !
  Op2 \   !             !             !             !
+---------+-------------+-------------+-------------+
!         !             !             !             !
!    OR   !    A003817  !    A086099  !    A142151  !
!         !             !             !             !
+---------+-------------+-------------+-------------+
!         !             !             !             !
!   AND   !    A000004  !    A000004  !    A000004  !
!         !             !             !             !
+---------+-------------+-------------+-------------+
!         !             !             !             !
!   XOR   !    A142149  !    A142150  !    A001477  !
!         !             !             !             !
+---------+-------------+-------------+-------------+