131035

Appears in sequences

• Quasi-Carmichael numbers to base -5: squarefree composites n such that prime p|n ==> p+5|n+5.at n=20A029565
• Number of (w,x,y,z) with all terms in {1,...,n} and 3w>=x+y+z+n.at n=29A212250
• Number of minimal edge cuts in the n-cycle complement and (n+1)-wheel complement graphs.at n=15A378923