A144264 Numbers k such that A014085(k) = A014085(k+1).
1, 2, 12, 18, 20, 21, 29, 36, 59, 66, 71, 73, 88, 90, 94, 95, 103, 104, 109, 128, 130, 131, 161, 166, 170, 209, 234, 250, 292, 299, 307, 318, 332, 353, 362, 375, 377, 391, 481, 509, 556, 557, 564, 577, 602, 619, 630, 665, 670, 684, 698, 728, 792, 808, 840
Offset: 1
Keywords
Links
- Zak Seidov and Amiram Eldar, Table of n, a(n) for n = 1..3000 (terms 1..2000 from Zak Seidov)
Programs
-
Mathematica
Flatten[Position[Partition[PrimePi[Range[1000]^2],3,1],?(Length[Union[ Differences[#]]]==1&),{1},Heads->False]] (* _Harvey P. Dale, Jun 17 2014 *)
Comments