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A073167
The (n!)-th composite number.
0
4, 6, 12, 36, 158, 871, 5802, 44996, 396465, 3905769, 42492571, 505638346, 6530063762, 90937897520, 1358169957289, 21652573590950, 366977865386054, 6588521300048437, 124902980656633121, 2493219952752601419, 52268714816806571926
OFFSET
1,1
FORMULA
a(n) = A002808(A000142(n)) for n >= 1. - Altug Alkan, Apr 21 2018
MATHEMATICA
c[n_] := FixedPoint[ n + PrimePi[ # ]+1&, n] Table[ c[n! ], {n, 1, 16}]
CROSSREFS
Sequence in context: A081198 A275978 A242211 * A060202 A062624 A154666
KEYWORD
nonn
AUTHOR
Labos Elemer, Jul 19 2002
EXTENSIONS
Extended by Robert G. Wilson v, Jul 20 2002
a(17)-a(21) from Chai Wah Wu, Apr 21 2018
STATUS
approved