# A148102 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 10 5 26 6 77 7 236 8 741 9 2430 10 8179 11 28208 12 99475 13 356501 14 1296199 15 4783652 16 17871126 17 67465415 18 257298969 19 989810000 20 3838658082 21 15001356476 22 59013879343 23 233616780902 24 930237304959 25 3723778727143 26 14981506373914 27 60554119697080 28 245812410995518 29 1001928721763590 30 4099422669401518