# A073218 (b-file synthesized from sequence entry) 1 1 2 4 3 7 4 25 5 28 6 49 7 172 8 175 9 196 10 343 11 1201 12 1204 13 1225 14 1372 15 2401 16 8404 17 8407 18 8428 19 8575 20 9604 21 16807 22 58825 23 58828 24 58849 25 58996 26 60025 27 67228 28 117649 29 411772 30 411775 31 411796 32 411943 33 412972 34 420175 35 470596 36 823543