OFFSET

1,1

COMMENTS

Is this sequence finite?

EXAMPLE

a(1) = 2 and 2 - 1 = 1 (nonprime);

a(2) = 11 and 11 - 3 = 8 (nonprime);

a(3) = 3 and 3 - 2 = 1 (nonprime);

a(4) = 23 and 23 - 5 = 18 (nonprime);

a(5) = 5 and 5 - 1 = 4 (nonprime); etc.

CROSSREFS

KEYWORD

nonn,base

AUTHOR

Eric Angelini, Sep 18 2023

EXTENSIONS

Data corrected and extended by David A. Corneth, Sep 18 2023

STATUS

approved