Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w<R, x>R, y>R, z>R, where R = max{w,x,y,z} - min{w,x,y,z}.

A212754

Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w<R, x>R, y>R, z>R, where R = max{w,x,y,z} - min{w,x,y,z}.

Terms

    a(0) =0a(1) =8a(2) =53a(3) =184a(4) =472a(5) =1008a(6) =1905a(7) =3296a(8) =5336a(9) =8200a(10) =12085a(11) =17208a(12) =23808a(13) =32144a(14) =42497a(15) =55168a(16) =70480a(17) =88776a(18) =110421a(19) =135800a(20) =165320a(21) =199408a(22) =238513a(23) =283104a(24) =333672a(25) =390728a(26) =454805a(27) =526456a(28) =606256a(29) =694800

External references