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1, 2, 1, 5, 1, 5, 5, 11, 1, 5, 5, 11, 7, 15, 19, 23, 1, 5, 5, 11, 7, 15, 19, 23, 7, 15, 21, 29, 29, 49, 59, 47, 1, 5, 5, 11, 7, 15, 19, 23, 7, 15, 21, 29, 29, 49, 59, 47, 7, 15, 21, 29, 29, 49, 61, 53, 29, 51, 71, 87, 107, 157, 163, 95, 1, 5, 5, 11, 7, 15, 19, 23, 7, 15, 21, 29, 29, 49, 59, 47
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| If written as a triangle,
1,
2,
1,5,
1,5,5,11,
1,5,5,11,7,15,19,23,
1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,47,
1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,...
the rows approach A151728.
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CROSSREFS
| Cf, A151735, A151728.
Sequence in context: A014652 A060448 A090080 * A014650 A014648 A036073
Adjacent sequences: A151734 A151735 A151736 * A151738 A151739 A151740
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KEYWORD
| nonn,tabf
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jun 15 2009, Jun 16 2009
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