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A090298
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Permutation of natural numbers generated by 5-rowed array shown below.
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11
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1, 9, 2, 11, 8, 3, 19, 12, 7, 4, 21, 18, 13, 6, 5, 29, 22, 17, 14, 10, 31, 28, 23, 16, 15, 39, 32, 27, 24, 20, 41, 38, 33, 26, 25, 49, 42, 37, 34, 30, 51, 48, 43, 36, 35, 59, 52, 47, 44, 40, 61, 58, 53, 46, 45, 69, 62, 57, 54, 50, 71, 68, 63, 56, 55, 79, 72, 67, 64, 60, 81, 78
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| 1 9 11 19 21 29 31 39... (A090771)
2 8 12 18 22 28 32 38... (A090772)
3 7 13 17 23 27 33 37... (A063226 or A063239)
4 6 14 16 24 26 34 36... (A090773)
5 10 15 20 25 30 35 40... (A008587, excluding initial term)
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For such arrays A_k, here A_5, see a W. Lang comment on A113807, the A_7 case. However, in order to obtain A_5 one should take the last row as the first one after adding a 0 in front (thus getting a permutation of the nonnegative integers). - From Wolfdieter Lang Feb 02 2012
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CROSSREFS
| Cf. A088520, A090243, A092260, A113807.
Sequence in context: A200234 A197812 A146492 * A094581 A040080 A098289
Adjacent sequences: A090295 A090296 A090297 * A090299 A090300 A090301
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KEYWORD
| easy,nonn
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Jan 25 2004
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EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 01 2004
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