{
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  "pegs": 3,
  "formula": "2^n - 1",
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  "year_definition": "365.25 days of 86,400 seconds (31,557,600 seconds)",
  "years": "5.845420e+11",
  "years_display": "about 585 billion",
  "centuries_display": "about 5.8 billion",
  "eight_disks_seconds": 255,
  "eight_disks_display": "4 min 15 s",
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      "moves": 65535,
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      "duration_at_1_per_s": "136.1 years"
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    {
      "disks": 40,
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      "seconds_at_1_per_s": 1099511627775,
      "duration_at_1_per_s": "34.8 thousand years"
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      "disks": 48,
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      "seconds_at_1_per_s": 281474976710655,
      "duration_at_1_per_s": "8.9 million years"
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    {
      "disks": 56,
      "moves": 72057594037927935,
      "seconds_at_1_per_s": 72057594037927935,
      "duration_at_1_per_s": "2.3 billion years"
    },
    {
      "disks": 64,
      "moves": 18446744073709551615,
      "seconds_at_1_per_s": 18446744073709551615,
      "duration_at_1_per_s": "584.5 billion years"
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}