51295

Appears in sequences

• Becomes prime after exactly 8 iterations of f(x) = sum of prime factors of x.at n=29A047827
• Composite numbers having the same digits as their prime factors (with multiplicity), excluding zero digits.at n=6A176670
• Number of nondecreasing arrangements of n numbers in -4..4 with sum zero and sum of squares less than n*20/3.at n=20A183930
• Number of (w,x,y,z) with all terms in {0,...,n} and (least gapsize)<=2.at n=16A212898