# A247700 (b-file synthesized from sequence entry) 1 1 2 22 3 122 4 212 5 221 6 333 7 1333 8 3133 9 3313 10 3331 11 22333 12 23233 13 23323 14 23332 15 32233 16 32323 17 32332 18 33223 19 33232 20 33322 21 122333 22 123233 23 123323 24 123332 25 132233 26 132323 27 132332 28 133223 29 133232 30 133322 31 212333 32 213233 33 213323 34 213332