Number of length 4+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 4*n.

A249984

Number of length 4+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 4*n.

Terms

    a(0) =64a(1) =384a(2) =1242a(3) =3030a(4) =6252a(5) =11524a(6) =19574a(7) =31242a(8) =47480a(9) =69352a(10) =98034a(11) =134814a(12) =181092a(13) =238380a(14) =308302a(15) =392594a(16) =493104a(17) =611792a(18) =750730a(19) =912102a(20) =1098204a(21) =1311444a(22) =1554342a(23) =1829530a(24) =2139752a(25) =2487864a(26) =2876834a(27) =3309742a(28) =3789780a(29) =4320252

External references