# A050894 (b-file synthesized from sequence entry) 1 1 2 7 3 21 4 55 5 175 6 235 7 2289 8 12419 9 19917 10 19971 11 21979 12 54007 13 66241 14 68757 15 98595 16 241211 17 274509 18 322971 19 342349 20 470529