2,1
T. R. S. Walsh and A. B. Lehman, Counting rooted maps by genus, J. Comb. Thy B13 (1972), 122-141 and 192-218.
Sequence in context: A128941 A051536 A043013 this_sequence A123520 A012847 A128721
Adjacent sequences: A006299 A006300 A006301 this_sequence A006303 A006304 A006305
nonn
njas
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