Round 1: 2 double crochet into each loop.
Round 2: 2 double crochet into each loop.
Round 3: 1 double crochet, 2 double crochet into the next loop, repeat.
Round 4: 1 double crochet into each loop.
Round 5: 1 double crochet, 5 chain, miss 2 loops, repeat.
Round 6: 9 double crochet into the 5 chain, repeat.
Round 7: 9 double crochet into successive loops, beginning on the 5th of [239] the 9 in last round, 5 chain, 1 single crochet into the last double crochet, and repeat.
Round 8: 1 double crochet into the centre one of the 9 in last round, 11 chain, repeat.
Round 9: 15 double crochet into the 11 chain in last round, repeat.
Round 10: 15 double crochet into successive loops, beginning on the 8th of the 15 in last round, 5 chain, 1 single crochet into the last double crochet, repeat.