A279194 Numbers of the form {(11*h+p)*11^2k-1 | h,k in N and p in {1,3,4,5,9} } U {(11*h+q)*11^(2k+1)-1 | h,k in N and q in {2,6,7,8,10} }.
0, 2, 3, 4, 8, 11, 13, 14, 15, 19, 21, 22, 24, 25, 26, 30, 33, 35, 36, 37, 41, 44, 46, 47, 48, 52, 55, 57, 58, 59, 63, 65, 66, 68, 69, 70, 74, 76, 77, 79, 80, 81, 85, 87, 88, 90, 91, 92, 96, 99, 101, 102, 103, 107, 109, 110, 112, 113, 114, 118, 120, 121, 123, 124, 125, 129
Offset: 1
Keywords
Links
- Ray Chandler, Table of n, a(n) for n = 1..10000
- Hao Fu, G.-N. Han, Computer assisted proof for Apwenian sequences related to Hankel determinants, arXiv preprint arXiv:1601.04370 [math.NT], 2016. See sequence "J" in Section 2.3.
- Guo-Niu Han, The program Apwen.py
Programs
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Mathematica
isok[n_]:=Module[{ord=IntegerExponent[n+1,11],pq={{1,3,4,5,9},{2,6,7,8,10}}},MemberQ[pq[[Mod[ord,2]+1]],Mod[(n+1)/11^ord,11]]];Select[Range[0,131],isok] (* Ray Chandler, Dec 17 2016 *)
Extensions
Definition (from p. 5, Definition 2.1 of the arXiv reference) provided by Arie Groeneveld, Dec 16 2016
More terms from Ray Chandler, Dec 17 2016
Comments