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A023419 a(n) = c([ n/2 ]) + c([ n/3 ]) + ... + c([ n/n ]) for n >=3, where a(1) = 1, a(2) = 2 and c(n) = n-th number not in sequence a( ). 0
1, 2, 6, 10, 13, 18, 21, 27, 31, 36, 39, 47, 50, 56, 61, 68, 71, 79, 82, 90, 96, 101, 104, 114, 118, 124, 130, 139, 142, 152, 155, 163, 168, 173, 179, 191, 194, 199, 205, 216, 219, 229, 232, 240, 249, 255, 258, 270, 275, 282, 287, 296, 299, 310 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..54.

CROSSREFS

Sequence in context: A247785 A190701 A184918 * A183990 A049838 A074929

Adjacent sequences:  A023416 A023417 A023418 * A023420 A023421 A023422

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 17 19:36 EDT 2018. Contains 316293 sequences. (Running on oeis4.)