13,3
The order of a squared rectangle is the number of squares into which it is divided.
C. J. Bouwkamp, personal communication.
Cf. A006983, A002881, A002839, A014530.
Sequence in context: A016043 A077403 A018374 this_sequence A063185 A059528 A070079
Adjacent sequences: A002959 A002960 A002961 this_sequence A002963 A002964 A002965
nonn,hard,nice
njas
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