Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.
1,1
Related to hyperperfect numbers of a certain form.
Table of n, a(n) for n=1..6.
J. S. McCranie, A study of hyperperfect numbers, J. Int. Seqs. Vol. 3 (2000) #P00.1.3
Select[Range[2000], PrimeQ[47^# - 46] &] (* Vincenzo Librandi, Sep 26 2012 *)
Sequence in context: A116440 A098720 A115091 * A018607 A032481 A236411
Adjacent sequences: A034921 A034922 A034923 * A034925 A034926 A034927
nonn
Jud McCranie
a(6) from Vincenzo Librandi, Sep 26 2012
approved