A075030 Primes for which the four closest primes are smaller.

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

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]]&] (* Harvey P. Dale *)

Crossrefs

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

Sequence in context: A185337 A365592 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