id:A097288 - OEIS Search Results

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Rectangular array read by antidiagonals obtained from A097287 by deleting the zeros.

+0
1

2, 1, 6, 3, 4, 12, 7, 5, 8, 20, 13, 9, 10, 14, 30, 21, 15, 11, 16, 22, 42, 31, 23, 17, 18, 24, 32, 56, 43, 33, 25, 19, 26, 34, 44, 72, 57, 45, 35, 27, 28, 36, 46, 58, 90, 73, 59, 47, 37, 29, 38, 48, 60, 74, 110, 91, 75, 61, 49, 39, 40, 50, 62, 76, 92, 132, 111, 93, 77, 63, 51 (list; table; graph; listen)

	OFFSET	`1,1`
	COMMENT	`As a sequence, this is a permutation of the natural numbers. Evens lie on or below the main diagonal; odds, above. The triangle formed by the evens is twice that of A066182.`
	EXAMPLE	`Northwest corner:` `2 1 3 7 13` `6 4 5 9 15` `12 8 10 11 17` `20 14 16 18 19`
	CROSSREFS	`Cf. A097287.` `Sequence in context: A124443 A077172 A160047 this_sequence A100014 A062566 A126265` `Adjacent sequences: A097285 A097286 A097287 this_sequence A097289 A097290 A097291`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu), Aug 05 2004`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research