# A095357 (b-file synthesized from sequence entry) 1 2 2 6 3 10 4 18 5 35 6 49 7 108 8 181 9 346 10 651 11 1236 12 2348 13 4240 14 8454 15 16537 16 30963 17 60986 18 118814 19 225337 20 438305 21 854049