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

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

Archive

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