1,5
W. F. Lunnon, Counting multidimensional polyominoes. Computer Journal 18 (1975), no. 4, pp. 366-367.
Cf. A000105.
Sequence in context: A037991 A043400 A038483 this_sequence A108034 A022232 A013767
Adjacent sequences: A006761 A006762 A006763 this_sequence A006765 A006766 A006767
nonn
njas
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