Home Learning: Number Chain Mental Arithmetic Puzzles
Digit Chains | NZ Maths
abstract algebra - Showing that if commutative R has infinite strictly ascending chains of principal ideals then so does R[x] - Mathematics Stack Exchange
Sequences - Sequences in Math Along with Rules, Formulas, and Examples
Paper Chain Math – Karyn's Blog
Chain complex - Wikipedia
Lie Structures and Chain Ideal Lattices | Bulletin of the Brazilian Mathematical Society, New Series
apt4Maths: Set of 10 PowerPoint Presentations (Relating to Number AND Algebra) on Types of Number and Sequences for GCSE (and Key Stage 3) Mathematics - APT Initiatives