# A173277 (b-file synthesized from sequence entry) 1 1 2 4 3 13 4 32 5 74 6 152 7 298 8 544 9 964 10 1632 11 2700 12 4320 13 6790 14 10408 15 15718 16 23264 17 34010 18 48920 19 69626 20 97760 21 136022 22 187112 23 255350 24 345056 25 463020 26 616032 27 814500 28 1068832 29 1394746 30 1807960 31 2331738 32 2989344 33 3814788 34 4842080 35 6120140 36 7697888 37 9644950