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

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

4
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