A079328 Let f(n)=A001359(n) be the smaller member of the n-th pair of twin primes. Then a(n) is the average of f(n) and f(n+1).
4, 8, 14, 23, 35, 50, 65, 86, 104, 122, 143, 164, 185, 194, 212, 233, 254, 275, 296, 329, 383, 425, 446, 491, 545, 584, 608, 629, 650, 734, 815, 824, 842, 869, 950, 1025, 1040, 1055, 1076, 1121, 1190, 1253, 1283, 1295, 1310, 1373, 1439, 1466, 1484, 1547, 1613
Offset: 1
Keywords
Links
- Eric Weisstein's World of Mathematics, Twin Primes
Programs
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Mathematica
s=Select[Range[2000], PrimeQ[ # ]&&PrimeQ[ #+2]&]; (Drop[s, 1]+Drop[s, -1])/2
Extensions
Edited by Dean Hickerson, Feb 14 2003
Comments