31886460

Appears in sequences

• Next-to-last diagonal of A024462.at n=15A038765
• Begin with first number 15. Add the digits of the first number to give the second; the first number multiplied by the second gives the third. The third number becomes the first in a new "set" of three.at n=12A111298
• a(n) = 3*a(n-1), with a(1) = 20.at n=13A116530