mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

24 December

1,0,2,0,1,1
The sequence of six numbers above has two properties:
  1. Each number is either 0, 1 or 2.
  2. Each pair of consecutive numbers adds to (strictly) less than 3.
Today's number is the number of sequences of six numbers with these two properties
Tags: numbers

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

3d shapes multiplication chalkdust crossnumber albgebra crossnumber books folding tube maps pascal's triangle indices people maths sum to infinity square roots time graphs crossnumbers digits lines complex numbers parabolas square numbers symmetry remainders elections geometric mean games cryptic crossnumbers mean star numbers proportion differentiation trigonometry planes shape number unit fractions tangents quadrilaterals functions speed hexagons rugby circles surds perimeter binary area colouring arrows 2d shapes chess clocks combinatorics quadratics expansions advent dominos volume odd numbers chocolate gerrymandering palindromes algebra coordinates bases median pentagons menace multiples geometry routes ave irreducible numbers logic products calculus regular shapes triangles grids crosswords tournaments polynomials perfect numbers fractions dice cube numbers dates partitions matrices addition triangle numbers cards digital products integration probabilty dodecagons geometric means doubling factorials range consecutive numbers coins cubics numbers even numbers consecutive integers christmas cryptic clues digital clocks money angles ellipses sets integers sums the only crossnumber balancing sequences taxicab geometry means spheres probability wordplay shapes determinants percentages polygons tiling averages scales factors sport division floors prime numbers axes squares rectangles decahedra

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024