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A343214
Number of compositions (ordered partitions) of 1/n into n reciprocals of positive integers.
1
1, 3, 106, 15259, 13879541, 95073863568
OFFSET
1,2
EXAMPLE
a(2) = 3 because we have 1/2 = 1/4 + 1/4 = 1/3 + 1/6 = 1/6 + 1/3.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Ilya Gutkovskiy, Apr 08 2021
EXTENSIONS
a(5)-a(6) from Max Alekseyev, Jan 24 2024
STATUS
approved