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A036045 Sum of distances between dual pairs of partitions of n for the canonical order. 12
0, 2, 4, 12, 24, 60, 110, 238, 436, 860, 1516, 2848, 4874, 8666, 14664, 25120, 41342, 69178, 111596, 181890, 289170, 461086, 720944, 1131358, 1743016, 2689332, 4094090, 6228298, 9364440, 14072828 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

a(4) = 12 = sum of dist. of {{1,5},{2,4},{3,3},{4,2},{5,1}}=4+2+0+2+4

CROSSREFS

Cf. A036045-A036056.

Sequence in context: A004645 A045687 A057422 * A100538 A135139 A161894

Adjacent sequences:  A036042 A036043 A036044 * A036046 A036047 A036048

KEYWORD

nonn,nice

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified February 16 14:07 EST 2012. Contains 205930 sequences.