Number of arrays of median of three adjacent elements of some length n+2 0..3 array, with no adjacent equal elements in the latter.

A229007

Number of arrays of median of three adjacent elements of some length n+2 0..3 array, with no adjacent equal elements in the latter.

Terms

    a(0) =4a(1) =14a(2) =46a(3) =130a(4) =332a(5) =830a(6) =2054a(7) =5108a(8) =12790a(9) =32146a(10) =80942a(11) =203898a(12) =513498a(13) =1292934a(14) =3254868a(15) =8193210a(16) =20623908a(17) =51914372a(18) =130680214a(19) =328953874a(20) =828059138a(21) =2084434524a(22) =5247046924a(23) =13208134738a(24) =33248182980a(25) =83693989466a(26) =210678694852

External references