53471

Appears in sequences

• Numerator of Sum_{1<k<n, n mod k > 0} n/k.at n=10A079076
• Totally multiplicative sequence with a(p) = a(p-1) + 10 for prime p.at n=37A166707
• G.f.: x/exp( Sum_{n>=1} a(n)*x^n/n ) = Sum_{n>=1} moebius(n)*x^n.at n=19A195589
• Number of nondecreasing sequences of n 1..7 integers with every element dividing the sequence sum.at n=39A212535
• Number of nX2 0..1 arrays with every element unequal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=9A317817
• Records in A361321.at n=34A361325