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A206562
Triangle read by rows: T(n,k) = sum of all parts >= k in the last section of the set of partitions of n.
5
1, 3, 2, 5, 3, 3, 11, 8, 4, 4, 15, 10, 8, 5, 5, 31, 24, 16, 10, 6, 6, 39, 28, 22, 16, 12, 7, 7, 71, 56, 40, 31, 19, 14, 8, 8, 94, 72, 58, 40, 32, 22, 16, 9, 9, 150, 120, 90, 72, 52, 37, 25, 18, 10, 10, 196, 154, 124, 94, 74, 54, 42, 28, 20, 11, 11
OFFSET
1,2
LINKS
EXAMPLE
Triangle begins:
1;
3, 2;
5, 3, 3;
11, 8, 4, 4;
15, 10, 8, 5, 5;
31, 24, 16, 10, 6, 6;
39, 28, 22, 16, 12, 7, 7;
71, 56, 40, 31, 19, 14, 8, 8;
94, 72, 58, 40, 32, 22, 16, 9, 9;
CROSSREFS
Columns 1-2 give A138879, A138880. Diagonal is A000027.
Sequence in context: A333363 A130299 A143309 * A155981 A057958 A225411
KEYWORD
nonn,tabl
AUTHOR
Omar E. Pol, Feb 15 2012
STATUS
approved