Fill in the blanks.

1, 1, 2, 4, 8, ?, ?, 56, 108, 208, 401

For i>4, the terms of the given sequence is in conformity with the following recurrance relation:

T(i) = T(i-1) + T(i-2) + T(i-3) + T (i-4); and:

T(6) = 1+ 2 + 4 + 8 = 15

T(7) = 2 + 4 + 8 + 15 = 29

Thus, the required missing numbers are 15 and 29.