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A024405 Number of products of distinct primes <= p(n) equal to 1 (mod p(n)). 0
1, 1, 2, 2, 2, 4, 5, 7, 13, 19, 36, 56, 102, 193, 350, 642, 1131, 2191, 3975, 7480, 14540, 27004, 51067, 95327, 174777, 335535, 658017, 1266162, 2485494, 4793475, 8521778, 16519017, 31580551, 62245705, 116080359, 229064578, 440510030, 848388496 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..38.

CROSSREFS

Sequence in context: A326685 A274150 A057591 * A230381 A082547 A068928

Adjacent sequences:  A024402 A024403 A024404 * A024406 A024407 A024408

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified February 24 13:13 EST 2021. Contains 341569 sequences. (Running on oeis4.)