89262
domain: N
Appears in sequences
- Numbers k such that phi(k) + 9 | sigma(k).at n=11A015800
- a(n) = 3*a(n-1) + 3*a(n-2), n>2, a(0)=1, a(1)=2, a(2)=8.at n=9A155116
- Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x<R, y<R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=17A212749
- Numbers that are representable in at least two ways as sums of four distinct nonvanishing cubes.at n=18A259060