A051155 a(n) = (2^5^(n+1) - 1)/(2^5^n - 1).

31, 1082401, 1267650638007162390353805312001, 3273390607896141870013189696827599152293599089395397756694773868291726792119530172040230983402733964346814858022765439290901496446006940490331586560001

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Crossrefs

Cf. A051154, A051156, A051157.

Programs

Mathematica

Table[(2^5^(n+1) - 1)/(2^5^n - 1),{n,0,3}] (* Stefano Spezia, Dec 23 2022 *)