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Related to enumeration of rooted maps.
(Formerly M5263)
1

%I M5263 #11 May 09 2021 06:07:35

%S 1,37,530,5245,42406

%N Related to enumeration of rooted maps.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H T. R. S. Walsh and A. B. Lehman, <a href="https://doi.org/10.1016/0095-8956(72)90049-4">Counting rooted maps by genus. II</a>, J. Comb. Thy B13 (1972), 122-141.

%Y Cf. A006302.

%K nonn,more

%O 2,2

%A _N. J. A. Sloane_.