OFFSET
1,2
REFERENCES
George E. Andrews, The Theory of Partitions, Addison-Wesley, Reading, Mass., 1976.
G. E. Andrews and K. Ericksson, Integer Partitions, Cambridge University Press 2004.
EXAMPLE
The partition of 7 = 3 + 2 + 2 looks like this in binary:
11
10
10
The binary ones are adjacent so this partition is counted in a(7).
The partition 7 = 5 + 2 looks like this in binary:
101
10
Since the binary ones are not adjacent horizontally or vertically this partition is not counted in a(7).
CROSSREFS
KEYWORD
nonn
AUTHOR
David S. Newman, Aug 30 2018
EXTENSIONS
a(9)-a(61) from Robert Price, Sep 06 2018
STATUS
approved