120118

Appears in sequences

• Numbers whose base-7 representation has exactly 7 runs.at n=10A043622
• Let u(1)=u(2)=u(3)=1, u(n+3)=(n*u(n)+(n+1)*u(n+1)+(n+2)*u(n+2))/(n+3); sequence gives values of n such that u(n) is an integer.at n=13A075770
• Numbers k such that k divides the sum of digits in primorial base of all numbers from 1 to k.at n=39A333703