Minimum even value unattainable as the sum of 6 attained values of i*(i-1) with i in 0..n.

Terms

a(0) =2a(1) =14a(2) =34a(3) =58a(4) =108a(5) =148a(6) =202a(7) =262a(8) =376a(9) =430a(10) =558a(11) =654a(12) =784a(13) =934a(14) =1088a(15) =1228a(16) =1378a(17) =1558a(18) =1756a(19) =1938a(20) =2158a(21) =2390a(22) =2634a(23) =2812a(24) =3076a(25) =3352a(26) =3550a(27) =3846a(28) =4210a(29) =4588