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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
OFFSET
1,1
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]]&] (* Harvey P. Dale *)
KEYWORD
nonn
AUTHOR
Neil Fernandez, Oct 10 2002
EXTENSIONS
Edited by Robert G. Wilson v, Oct 11 2002
STATUS
approved