# A158324 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 8 5 22 6 50 7 100 8 296 9 598 10 1298 11 4132 12 8264 13 16534 14 33170 15 91012 16 206696 17 415030 18 1249394 19 2498884 20 5390984 21 17073526 22 34173266 23 68764420 24 137922056 25 376926742 26 861226034 27 1729136740 28 5169575720 29 10339177558 30 22389655826