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

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

Archive

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