hard Set 36 Logic Puzzle

Hard Sequence Pattern #36

Title
Hard Sequence Pattern #36
SequenceType
seq-visual
DisplaySequence
  • 1 block
  • _
  • 6 blocks
  • 10 blocks
  • _
  • 21 blocks
  • 28 blocks
  • _
  • 45 blocks
  • 55 blocks
FullSequence
  • 1 block
  • 3 blocks
  • 6 blocks
  • 10 blocks
  • 15 blocks
  • 21 blocks
  • 28 blocks
  • 36 blocks
  • 45 blocks
  • 55 blocks
BlankPositions
  • 1
  • 4
  • 7
Answers
  • 3 blocks
  • 15 blocks
  • 36 blocks
Rule
Staircase block patterns
Question
Find the 3 missing terms in the sequence: 1 block, _, 6 blocks, 10 blocks, _, 21 blocks, 28 blocks, _, 45 blocks, 55 blocks
SequenceLength
10
Hint
Count how many are added each time.