OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Primorial
EXAMPLE
2550 is in the sequence because 2550 = 30 + 210 + 2310 = 2*3*5 + 2*3*5*7 + 2*3*5*7*11.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Feb 22 2022
STATUS
approved