login
A096702
Balanced primes of order ten.
17
5503, 6301, 8233, 14489, 14591, 14747, 15907, 17789, 20543, 22067, 22699, 23321, 24593, 25423, 26251, 26347, 28477, 29059, 33161, 41023, 42337, 44021, 48187, 51551, 53279, 55001, 59693, 64661, 78173, 81457, 82561, 84017, 85621, 88301
OFFSET
1,1
LINKS
EXAMPLE
5503 is a member because
5503 = (5431 + 5437 + 5441 + 5443 + 5449 + 5471 + 5477 + 5479 + 5483 + 5501 + 5503 + 5507 + 5519 + 5521 + 5527 + 5531 + 5557 + 5563 + 5569 + 5573 + 5581)/21 = 115563/21.
MATHEMATICA
Transpose[ Select[ Partition[ Prime[ Range[10000]], 21, 1], #[[11]] == (#[[1]] + #[[2]] + #[[3]] + #[[4]] + #[[5]] + #[[6]] + #[[7]] + #[[8]] + #[[9]] + #[[10]] + #[[12]] + #[[13]] + #[[14]] + #[[15]] + #[[16]] + #[[17]] + #[[18]] + #[[19]] + #[[20]] + #[[21]])/20 &]][[11]]
Transpose[Select[Partition[Prime[Range[9000]], 21, 1], Total[#]/21 == #[[11]]&]][[11]] (* Harvey P. Dale, Mar 09 2014 *)
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jun 26 2004
STATUS
approved