Number of length n+2 0..4 arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.
A253125
Number of length n+2 0..4 arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =13a(1) =345a(2) =673a(3) =7257a(4) =28428a(5) =184145a(6) =866944a(7) =4737473a(8) =23297196a(9) =120376601a(10) =598856998a(11) =3032621917a(12) =15138719850a(13) =76078222215a(14) =380193902100
External references
- oeis: A253125