Number of length 4+1 0..n arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.

A250421

Number of length 4+1 0..n arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =20a(1) =125a(2) =476a(3) =1351a(4) =3154a(5) =6433a(6) =11906a(7) =20461a(8) =33178a(9) =51359a(10) =76520a(11) =110417a(12) =155080a(13) =212797a(14) =286144a(15) =378023a(16) =491638a(17) =630529a(18) =798614a(19) =1000157a(20) =1239806a(21) =1522639a(22) =1854124a(23) =2240161a(24) =2687132a(25) =3201853a(26) =3791620a(27) =4464263a(28) =5228090a(29) =6091937

External references