112514

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 39.at n=8A031627
• Concatenate Catalan numbers (A000108).at n=4A059996
• Number of polyominoes consisting of 7 regular unit n-gons.at n=15A103473
• McKay-Thompson series of class 24b for the Monster group.at n=37A112162
• "Self-Fibonacci"; a(n) is the sum of the last nine terms. Sequence starts with 6,9,2,15,14,1,3,3,9 which are f,i,b,o,n,a,c,c,i if you consider a=1, b=2, c=3, ..., z=26.at n=20A129938