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A020937 Greatest k such that (k-th prime) < (7 times n-th prime). 1
6, 8, 11, 15, 21, 24, 30, 32, 37, 46, 47, 55, 61, 62, 66, 73, 80, 82, 91, 94, 97, 101, 106, 114, 123, 126, 128, 132, 135, 138, 154, 156, 162, 164, 175, 177, 184, 189, 192, 197, 204, 205, 217, 217, 220, 221, 233, 246, 250, 252, 258, 263, 263, 273, 278, 282, 289 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Cf. A020900, A020901, A020934-A020940.

Sequence in context: A287398 A167499 A020716 * A183208 A048586 A080824

Adjacent sequences:  A020934 A020935 A020936 * A020938 A020939 A020940

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Henry Bottomley, Nov 13 2000

STATUS

approved

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Last modified April 20 02:06 EDT 2019. Contains 322291 sequences. (Running on oeis4.)