Chain 93 very loosely
Work 1 triple crochet, do 2 in third chain from hook skip 2 loops,
do a single crochet skip 2 loops, do 5 triple again repeat across, turn
and return.
When I got the blanket to a square I did a trim of large shells on the edges, first I did a chain 3, skip one loop, double crochet, chain two, repeat, do this on all four edges.
Then do the shell pattern like the blanket itself, around all four edges