# A148046 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 10 5 20 6 58 7 129 8 456 9 1134 10 3548 11 9794 12 33807 13 96578 14 306887 15 967425 16 3255598 17 10137930 18 32871380 19 110954830 20 371459199 21 1212221590 22 4058086695 23 14072357534 24 47559861357 25 159489386798 26 550988433164 27 1927971427275 28 6601530164918 29 22631882518193 30 79913196165907 31 280987658710751 32 973663407984038