A083489 - OEIS

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A083489

Triangle read by rows where the n-th row gives the reverse-lexicographically earliest sequence of n distinct integers > 1 whose product equals the smallest possible square (=A081456(n)).

4, 2, 8, 2, 3, 6, 2, 3, 4, 6, 2, 3, 4, 6, 9, 2, 3, 5, 6, 8, 10, 2, 3, 4, 5, 6, 8, 10, 2, 3, 4, 5, 6, 8, 9, 10, 2, 3, 4, 5, 6, 7, 9, 10, 14, 2, 3, 4, 5, 7, 8, 9, 10, 12, 14, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 16, 2, 3, 4, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 2

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..92.

FORMULA

Results from the triangle in A081454 by removing first column (equivalently, by removing all 1's from the sequence).

EXAMPLE

2 8

2 3 6

2 3 4 6

2 3 4 6 9

2 3 5 6 8 10

...

CROSSREFS

Cf. A081454, A086435, A081457.

Sequence in context: A112151 A112152 A211883 * A065464 A201400 A040015

Adjacent sequences: A083486 A083487 A083488 * A083490 A083491 A083492

KEYWORD

nonn,tabl

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 03 2003

EXTENSIONS

Corrected by R. J. Mathar, Jul 18 2007

Corrected and extended by Max Alekseyev, Jul 16 2009

STATUS

approved