a(0) = 8 because 11^0 + 8 = 9 = 3^2 is an odd semiprime.
a(1) = 4 because 11^1 + 4 = 15 = 3 * 5 is an odd semiprime.
a(2) = 2 because 11^2 + 2 = 123 = 3 * 41.
a(3) = 2 because 11^3 + 2 = 1333 = 31 * 43 (brilliant).
a(4) = 6 because 11^4 + 6 = 14647 = 97 * 151.
a(5) = 14 because 11^5 + 14 = 161065 = 5 * 32213.
a(6) = 4 because 11^6 + 4 = 1771565 = 5 * 354313.
a(7) = 6 because 11^7 + 6 = 19487177 = 41 * 475297.
a(8) = 6 because 11^8 + 6 = 214358887 = 317 * 676211.
a(9) = 6 because 11^9 + 6 = 2357947697 = 7 * 336849671.
a(10) = 4 because 11^10 + 4 = 25937424605 = 5 * 5187484921.
a(30) = 48 because 11^30 + 48 = 17449402268886407318558803753849 = 7 * 2492771752698058188365543393407.
