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A027682
Number of independent subsets of Hamming graph H(n,4).
0
2, 5, 209, 127545137
OFFSET
0,1
COMMENTS
For n=0, the two sets are the empty set and a set containing a single isolated vertex. - Sean A. Irvine, Nov 23 2019
CROSSREFS
Sequence in context: A013105 A208210 A216458 * A096695 A084297 A041873
KEYWORD
nonn,hard,more
AUTHOR
EXTENSIONS
a(0) corrected by Sean A. Irvine, Nov 23 2019
STATUS
approved