# A072180 (b-file synthesized from sequence entry) 1 5 2 7 3 9 4 17 5 19 6 51 7 53 8 81 9 83 10 119 11 189 12 219 13 227 14 301 15 455 16 461 17 623 18 2037 19 2221 20 2455 21 3547 22 5515 23 6825 24 8303 25 9029 26 12103 27 49989 28 55525 29 64773 30 80307 31 119087 32 141915 33 192023 34 205933 35 301683 36 307407