113643

Appears in sequences

• Numerators of the sums of reciprocals of the Collatz (3x+1) sequence beginning with n and stopping at 1.at n=27A225761
• Maximal coefficient of (1 + x) * (1 + x^3) * (1 + x^6) * ... * (1 + x^(n*(n+1)/2)).at n=27A359348