Collatz(63728127) has sequence length of 950 steps
Collatz(95592191) has sequence length of 948 steps
Collatz(96883183) has sequence length of 811 steps
Collatz(86010015) has sequence length of 798 steps
Collatz(98110761) has sequence length of 749 steps
Collatz(73583070) has sequence length of 746 steps
Collatz(73583071) has sequence length of 746 steps
Collatz(36791535) has sequence length of 745 steps
Collatz(55187303) has sequence length of 743 steps
Collatz(56924955) has sequence length of 743 steps
Collatz(82780955) has sequence length of 741 steps
Collatz(85387433) has sequence length of 741 steps
Collatz(63101607) has sequence length of 738 steps
Collatz(64040575) has sequence length of 738 steps
Collatz(93128574) has sequence length of 736 steps
Collatz(93128575) has sequence length of 736 steps
Collatz(94652411) has sequence length of 736 steps
Collatz(96060863) has sequence length of 736 steps
Collatz(46564287) has sequence length of 735 steps
Collatz(69846431) has sequence length of 733 steps


##</code><code>##

1e8: parallel, 32 cores (File::Map, pack, unpack):
  https://www.perlmonks.org/?node_id=11115544
  https://www.perlmonks.org/?node_id=11115780

     Laurent + updates    3.474s
        iM71 + updates    2.701s
    Step counting in C    1.654s

1e8: parallel, 16 cores

     Laurent + updates    6.219s
        iM71 + updates    4.787s
    Step counting in C    2.793s

1e8: parallel,  8 cores

     Laurent + updates   12.061s
        iM71 + updates    9.200s
    Step counting in C    5.258s

1e8: parallel,  4 cores

     Laurent + updates   23.615s
        iM71 + updates   17.935s
    Step counting in C   10.056s

1e8: parallel,  2 cores

     Laurent + updates   46.146s
        iM71 + updates   34.342s
    Step counting in C   19.084s

1e8: non-parallel (Array):
  https://www.perlmonks.org/?node_id=11115841

     Laurent + updates   53.961s
        iM71 + updates   48.673s
    Step counting in C   19.023s