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A164679
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Convolve A001399 with sequences which map to 2,3,5,7,11,13,17... A000040 then, by bending when needed, summarize the results in a triangular array.
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0
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1, 2, 1, 5, 4, 2, 10, 9, 7, 3, 19, 18, 16, 11, 4, 33, 32, 30, 25, 16, 5, 57
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| A000040 begins 2,3,5,7,11,13,... so the leading diagonal of a(n) is
A000098 1,2,5,10,19,33,57,92,147,227,345,512 ...
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CROSSREFS
| Cf. A164678 (a similar triangle).Other diagonals are A001399, A000601, A097701, A117485, ...
Sequence in context: A103718 A113350 A164678 * A185023 A061579 A094064
Adjacent sequences: A164676 A164677 A164678 * A164680 A164681 A164682
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KEYWORD
| easy,nonn,tabl,uned
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AUTHOR
| Alford Arnold (Alford1940(AT)aol.com), Sep 05 2009
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