← Patterns and sequencesZAP 2011, Exercise 3 — Orange pyramid stackingPatterns and sequencesZAP 2011MediumYour answerEnter only the number. Use a point or comma for decimals.Check answerReveal solutionStuck? Show me one stepRelated exercisesEasierPatterns 007 — Squares of matchsticksSimilarPatterns 006 — A pyramid of tennis ballsCombinatorics 029 — ZAP 2021, Exercise 4: Number sequencesHarderPatterns and Sequences 011 — ZAP 2026, Exercise 7: Cube figure sequencesPatterns 005 — Rectangular Dot Pattern