The dimensions ≤80 of splittable simple Lie algebras are:
3(A1=B1=C1),8(A2),10(B2=C2),14(G2),15(A3=D3),21(B3
and C3),24(A4),28(D4),35(A5),36(B4 and C4),45(D5),48(A6),52 (F4),55(B5 and C5),63(A7),66(D6),78(B6,C6 and E6),80(A8).
Nothing.
Nothing.