A084556 - OEIS

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A084556

n occurs n! times.

0, 1, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5

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OFFSET

0,3

COMMENTS

Also minimum i such that A007489(i) >= n.

For n>=1, a(n) gives the length of the n-th permutation in the sequences like A030298 & A030496.

LINKS

A. Karttunen, Table of n, a(n) for n = 0..46234

Index entries for sequences related to permutations

MATHEMATICA

Flatten[ Table[#, {#!}] & /@ Range[0, 5]]

CROSSREFS

First differences of A084555. Used to compute A084557. Differs from A084506 first time at the 130th term, where A084506(130) = 6, while A084556(130) = 5. Cf. also A002024, A072643, A072649, A090529.

Sequence in context: A119447 A157720 A077463 * A084506 A071578 A364800

Adjacent sequences: A084553 A084554 A084555 * A084557 A084558 A084559

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jun 02 2003

STATUS

approved