The On-Line Encyclopedia of Integer Sequences (OEIS)

A354166 revision #5

A354166

Number of nonprimes among first n terms of A090252.

1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 17

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OFFSET

1,5

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..34886

CROSSREFS

Cf. A090252, A354164, A354165.

Sequence in context: A101402 A156251 A116458 * A331854 A093875 A329242

Adjacent sequences: A354163 A354164 A354165 * A354167 A354168 A354169

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 31 2022

STATUS

approved