# A145820 (b-file synthesized from sequence entry) 1 8 2 9 3 16 4 25 5 40 6 89 7 144 8 233 9 520 10 841 11 1360 12 3033 13 4904 14 7929 15 17680 16 28585 17 46216 18 103049 19 166608 20 269369 21 600616 22 971065 23 1570000 24 3500649 25 5659784 26 9150633 27 20403280 28 32987641 29 53333800 30 118919033 31 192266064 32 310852169 33 693110920