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A171895 Number of distinct terms among the first n terms of A181391. 3
1, 1, 2, 2, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..10000

CROSSREFS

Partial sums of A171894. Essentially A171896 - 1. Cf. A181391.

Sequence in context: A224458 A097688 A262685 * A025785 A227002 A087182

Adjacent sequences:  A171892 A171893 A171894 * A171896 A171897 A171898

KEYWORD

nonn

AUTHOR

Vinay Vaishampayan and N. J. A. Sloane, Oct 19 2010

STATUS

approved

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Last modified August 7 06:02 EDT 2020. Contains 336274 sequences. (Running on oeis4.)