A076123 - OEIS

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A076123

Rearrangement of natural numbers so that the product of n terms starting from a(n) is a square.

1

1, 2, 8, 3, 6, 4, 18, 5, 15, 7, 42, 9, 16, 10, 20, 11, 55, 12, 45, 13, 91, 14, 27, 17, 68, 19, 76, 21, 210, 22, 110, 23, 253, 24, 330, 25, 48, 26, 130, 28, 364, 29, 2639, 30, 105, 31, 93, 32, 34, 33, 561, 35, 665, 36, 171, 37, 777, 38, 1995, 39, 858, 40, 44, 41, 943, 43

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..66.

CROSSREFS

Sequence in context: A154928 A201394 A169844 * A021783 A008908 A050077

Adjacent sequences: A076120 A076121 A076122 * A076124 A076125 A076126

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Oct 14 2002

EXTENSIONS

More terms from David Wasserman, Apr 02 2005

STATUS

approved