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 A236628 Triangle read by rows in which T(n,k) is the number of parts in the k-th region of the set of overcompositions of n, with overcompositions in colexicographic order. 2
 2, 2, 4, 2, 6, 4, 12, 2, 6, 4, 14, 4, 6, 4, 26 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Right border gives A236002, n >= 1. Row sums give A236625, n >= 1. LINKS EXAMPLE Written as an irregular triangle in which row n has length 2^n the sequence begins: 2; 2, 4; 2, 6, 4, 12; 2, 6, 4, 14, 4, 6, 4, 26; ... For n = 3 the diagram shows the four regions of the overcompositions of 3, with overcompositions in colexicographic order. ------------------------------------------------ .  Diagram of            Regions of the diagram overcompositions        ------------------------ .    of 3                k: 1     2   3       4 ------------------------------------------------ .    _ _ _                  _     _           _ 1   |.| | |                |.|   | |         | | 2   |_| | |                |_|  _| |         | | 3   |  .|.|                    |  .|         |.| 4   |   |.|                    |   |         |.| 5   |  .| |                    |  .|         | | 6   |_ _| |                    |_ _|  _     _| | 7   |.|  .|                          |.|   |  .| 8   | |  .|                          | |   |  .| 9   |.|   |                          |.|   |   | 10  |_|   |                          |_|  _|   | 11  |    .|                              |    .| 12  |_ _ _|                              |_ _ _| ... Number of parts.........:   2     6   4      12 . Every row of every region contains only one part. CROSSREFS Cf. A236002, A236625, A236626. Sequence in context: A240828 A239240 A054929 * A078429 A171751 A124676 Adjacent sequences:  A236625 A236626 A236627 * A236629 A236630 A236631 KEYWORD nonn,tabf,more AUTHOR Omar E. Pol, Feb 01 2014 STATUS approved

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Last modified July 18 01:14 EDT 2019. Contains 325110 sequences. (Running on oeis4.)