# A060180 (b-file synthesized from sequence entry) 1 1 2 1 3 4 4 6 5 11 6 15 7 28 8 43 9 74 10 103 11 148 12 213 13 296 14 476 15 679 16 990 17 1133 18 1707 19 2225 20 3260 21 4591 22 6042 23 7343 24 9374 25 13774 26 18262 27 25244 28 30379 29 39768 30 47295 31 66471 32 87903 33 115570 34 139802 35 173605 36 215878 37 271434 38 369256 39 466904 40 569623 41 664775