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A075030 Primes for which the four closest primes are smaller. 7
113, 1327, 2557, 2803, 2971, 3271, 3469, 4027, 4297, 4523, 5119, 5449, 5531, 5591, 7253, 7883, 8389, 9013, 9439, 9551, 10111, 10909, 11177, 11839, 12119, 12163, 12853, 12923, 13187, 13339, 13729, 13933, 14563, 15683, 15823, 16073, 16141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..37.

EXAMPLE

The four closest primes to 1327 are 1321 (difference = 6), 1319 (difference = 8), 1307 (different = 20) and 1303 (difference =24). 1321, 1319, 1307 and 1303 are all smaller than 1327, so 1327 is in the list.

MATHEMATICA

#[[5]]&/@Select[Partition[Prime[Range[2500]], 6, 1], #[[5]]-#[[1]]<#[[6]]-#[[5]]&] (from Harvey P. Dale)

CROSSREFS

Cf. A001223, A074979, A074982, A075037, A075038, A075043, A075050 and A075051.

Sequence in context: A152928 A185337 A300921 * A079098 A187519 A301529

Adjacent sequences:  A075027 A075028 A075029 * A075031 A075032 A075033

KEYWORD

nonn

AUTHOR

Neil Fernandez, Oct 10 2002

EXTENSIONS

Edited by Robert G. Wilson v, Oct 11 2002

STATUS

approved

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Last modified April 11 06:11 EDT 2021. Contains 342886 sequences. (Running on oeis4.)