126040 is: 126040 = (A048914(4) - 1)/2. 126040 = A055823(26) - A055823(25). 126040 = A077811(39) + A077811(40). 126040 = Sum[i=0..5, A001802(i) ]. 126040 = Sum[i=1..20, A007315(i) ]. 126040 = D(18) where D is the second differences of A022695. ralf