A171626 - OEIS

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A171626

Ceiling(n-th noncomposite/n).

0

1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

COMMENTS

Ceiling(A008578(n)/A000027(n)). Numerators of (A008578(n)/A000027(n)) in A171525(n), denominators of (A008578(n)/A000027(n)) in A171526(n).

LINKS

Table of n, a(n) for n=1..50.

FORMULA

a(n) = A171622(n) + 1 for n >= 4.

CROSSREFS

Sequence in context: A052375 A212625 A309398 * A074279 A072750 A235037

Adjacent sequences: A171623 A171624 A171625 * A171627 A171628 A171629

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Dec 13 2009

EXTENSIONS

Corrected by Jaroslav Krizek, Dec 16 2009

STATUS

approved