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A081676 Largest perfect power <= n. 1
1, 1, 1, 4, 4, 4, 4, 8, 9, 9, 9, 9, 9, 9, 9, 16, 16, 16, 16, 16, 16, 16, 16, 16, 25, 25, 27, 27, 27, 27, 27, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

COMMENTS

a(n) = n - A069584(n).

CROSSREFS

Cf. A001597.

Sequence in context: A120327 A056629 A167185 * A114555 A124570 A053187

Adjacent sequences:  A081673 A081674 A081675 * A081677 A081678 A081679

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 26 2003

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Last modified February 14 07:14 EST 2012. Contains 205585 sequences.