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1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 1, 4, 2, 1, 1, 1, 1, 1, 1, 6, 2, 2, 1, 1, 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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COMMENTS
| Left border = phi(n), A000010.
Row sums = A029935: (1, 2, 4, 5, 8, 8, 12, 12,...)
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FORMULA
| Mobius transform of triangle A143257
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EXAMPLE
| First few rows of the triangle =
1;
1, 1;
2, 1, 1;
2, 1, 1, 1;
4, 1, 1, 1, 1;
2, 2, 1, 1, 1, 1;
6, 1, 1, 1, 1, 1, 1;
...
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CROSSREFS
| Cf. A143257, A054525, A029935, A000010.
Sequence in context: A179285 A026835 A117975 * A027199 A140218 A193805
Adjacent sequences: A143255 A143256 A143257 * A143259 A143260 A143261
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 02 2008
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