Number of colors that can be mixed with n >= 0 units of yellow, blue, red.

Terms

a(0) =1a(1) =4a(2) =7a(3) =14a(4) =23a(5) =41a(6) =56a(7) =89a(8) =119a(9) =164a(10) =206a(11) =281a(12) =335a(13) =437a(14) =518a(15) =626a(16) =734a(17) =902a(18) =1019a(19) =1226a(20) =1382a(21) =1592a(22) =1787a(23) =2084a(24) =2288a(25) =2618a(26) =2888a(27) =3239a(28) =3545a(29) =4007