181622

Appears in sequences

• a(n) = a(n-1) + 12*a(n-2) with a(1) = 1 and a(2) = 2.at n=9A290124
• Times on the display of a 24-hour digital clock with 6 digits, rounded to full seconds, at which the hour and minute hands of an analog clock form a right angle. Terms with fewer than 6 digits are to be assumed filled with zeros to the left.at n=33A347039