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A024404 Number of products of distinct primes <= prime(n) equal to -1 (mod prime(n)). +0
1
1, 1, 0, 1, 2, 1, 3, 7, 10, 17, 33, 56, 102, 197, 359, 617, 1128, 2182, 3966, 7488, 14538, 26766, 51232, 95325, 174742, 335555, 657893, 1266230, 2485507, 4793512, 8521770, 16519171, 31580739, 62246045, 116079942, 229064794, 440508973, 848388680 (list; graph; listen)
OFFSET

1,5

CROSSREFS

Sequence in context: A019320 A033640 A112027 this_sequence A077173 A063509 A137766

Adjacent sequences: A024401 A024402 A024403 this_sequence A024405 A024406 A024407

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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