A168544 The nonprime halfs of even single (or even isolated) numbers.

1, 6, 9, 15, 21, 30, 36, 51, 54, 69, 75, 90, 96, 99, 114, 120, 135, 141, 156, 174, 210, 216, 231, 261, 285, 300, 309, 321, 330, 405, 411, 414, 429, 441, 510, 516, 525, 531, 546, 576, 615, 639, 645, 651, 639, 645, 651, 660, 714, 726, 741, 744, 804, 810, 834, 849

Offset

1,2

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A008486, A040040, A141468, A168497.

Sequence in context: A316046 A164383 A316047 * A001748 A097426 A075278

Adjacent sequences: A168541 A168542 A168543 * A168545 A168546 A168547

Keyword

nonn

Author

Juri-Stepan Gerasimov, Nov 29 2009

Status

approved