777770

Appears in sequences

• Expansion of 1/(1-2x-3x^4).at n=17A099526
• a(n) is the least positive integer in base 10 containing n sevens that is divisible by n.at n=4A112904
• Array read by rows: T(n,k) is the first number with n prime factors (counted with multiplicity) and n occurrences of decimal digit k.at n=47A375784