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A054110
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Triangular array T(n,k): in Pascal's triangle, draw vertical lines through binomial(n-1,k-1) (if present) and binomial(n-1,k) (if present); then T(n,k) is the sum of binomial(i,j) that lie on or between the lines and not below binomial(n,k).
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4
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1, 1, 1, 1, 5, 1, 1, 8, 8, 1, 1, 10, 17, 10, 1, 1, 12, 28, 28, 12, 1, 1, 14, 40, 57, 40, 14, 1, 1, 16, 54, 98, 98, 54, 16, 1, 1, 18, 70, 152, 197, 152, 70, 18, 1, 1, 20, 88, 222, 350, 350, 222, 88, 20, 1, 1, 22, 108, 310, 572, 701, 572, 310, 108
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,5
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EXAMPLE
| Rows: {1}, {1,1}, {1,5,1}, {1,8,8,1}, ...
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CROSSREFS
| Sequence in context: A137754 A131404 A078181 * A132048 A141398 A058281
Adjacent sequences: A054107 A054108 A054109 * A054111 A054112 A054113
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KEYWORD
| nonn,tabl
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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