42984

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 25 ones.at n=29A031793
• Numbers that have exactly seven prime factors counted with multiplicity (A046308) whose digit reversal is different and also has 7 prime factors (with multiplicity).at n=30A109027
• A182642(n) - A107857(n-1) for n>=1.at n=15A182643
• Wiener index of the n-Sierpinski tetrahedron graph.at n=3A292026
• Numbers of the form ab such that uphi(ab) = a*b where ab is the concatenation of a and b.at n=41A337523