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A022798 a(n) = P(n) + c(n), where P(1) = 1, P(n) = (n-1)st prime for n >= 2, c(n) = n-th number not in sequence P. 1
5, 8, 11, 14, 17, 23, 27, 32, 35, 41, 49, 52, 59, 65, 68, 73, 80, 87, 91, 99, 104, 107, 114, 119, 127, 136, 141, 145, 151, 154, 159, 175, 180, 187, 190, 201, 205, 212, 219, 224, 231, 239, 243, 254, 257, 262, 265, 279, 292, 297, 301, 307, 314, 317 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n) = n-th composites + n-th noncomposites = A002808(n) + A008578(n). [From Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Nov 18 2009]

FORMULA

a(n) = A164653(n+2). [From Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Dec 13 2009]

CROSSREFS

Sequence in context: A161537 A189724 A180486 * A022808 A104279 A184919

Adjacent sequences:  A022795 A022796 A022797 * A022799 A022800 A022801

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 10:43 EST 2012. Contains 205614 sequences.