In a sequence of numbers from 1 to 53, one or more numbers are missing, and your task is to spot them in just 11 seconds. This teaser tests your observation, logical thinking, and pattern recognition.

Figurate Numbers generates 241 infinite sequences of plane, space, and multidimensional figurate numbers based on the book ‘Figurate Numbers’ (2012) by Elena Deza and Michel Deza. The methods are ...

CERTAIN quadratic series abound in prime numbers1. Take, for example, the following Sequence in which the consecutive differences are 2, 4, 6, 8, etc. These are all prime numbers; the next term in ...