Number of length n+2 0..2 arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.

A251422

Number of length n+2 0..2 arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =9a(1) =41a(2) =97a(3) =341a(4) =1003a(5) =3129a(6) =9439a(7) =28717a(8) =86695a(9) =261789a(10) =788373a(11) =2372693a(12) =7133179a(13) =21434717a(14) =64377579a(15) =193296317a(16) =580236633a(17) =1741470477a(18) =5226041293a(19) =15681654949a(20) =47052540983a(21) =141173946441a(22) =423556852705

External references