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RobPratt
  • Member for 5 years
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  • NC, USA
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  • Senior R&D Manager, SAS Institute Inc.
  • Ph.D. in Operations Research, The University of North Carolina at Chapel Hill
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Top posts
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20
Listing all posets on 9 points?
Feb 25, 2021
16
Optimal search puzzle
Sep 24, 2023
14
Packing circles with radii 1, 2, 3, ..., n in a rectangle
Jan 25, 2020
14
Splitting the integers from $1$ to $2n$ into two sets with products as close as possible
Mar 31, 2022
13
How many ways can $N$ be written as a sum of terms in the form $2^i3^j$?
Aug 4, 2021
11
How can I simplify this sum any further?
Nov 16, 2019
10
How many points should we remove so that there are no n points lying on a line?
Jun 9, 2023
10
More precise bound for the maximin number of arrows pointing to a square when square grid is filled with arrows
Jan 22, 2022
8
Size of sets with complete double
Oct 20, 2019
8
Decomposing square of side length $n$ into $n$ squares in a certain "maximal" way
Feb 21, 2021
Top network posts
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56
What is the optimal number of dice to roll a Yahtzee in one roll?
42
What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?
30
Checkmate 30 kings with rooks
26
Which heptomino is it obvious can't tile the plane?
25
What node does 11 point to?