# A057491 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 10 5 17 6 50 7 62 8 221 9 250 10 253 11 289 12 290 13 316 14 697 15 764 16 1250 17 1819 18 3590 19 4913 20 6250 21 31250 22 54043 23 55913 24 63869 25 83521 26 98923 27 156250 28 231250 29 530893 30 781250 31 987110 32 1419857 33 2383750 34 3906250 35 4531250 36 6891250 37 8789357 38 9593750 39 12479450 40 18458141 41 19531250