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A343167
Sum of columns 1, 2, and 3 of triangle in A343168.
1
1, 1, 2, 5, 10, 33, 104, 402, 1631
OFFSET
1,3
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 19 2021, based on an email from Don Knuth
STATUS
approved