49955

Appears in sequences

• Floor( exp(3/14)*n! ).at n=7A030920
• Numbers k such that sigma(k) divides sigma(k+1), where sigma(k) is sum of positive divisors of k.at n=33A058072
• Numbers k such that sigma(k+1) = 2*sigma(k).at n=11A067081
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 9.at n=56A136901
• a(0) = a(1) = 1, and a(n) = a(n-1) + a( (a(n-1)-1) mod n ) for n>=2.at n=40A268176