OFFSET
1,2
COMMENTS
No other terms below 15902591. The next candidate is the odd tribonacci number 15902591. Is this also a lucky number? - Harvey P. Dale, Jul 12 2008
This is to tribonacci as A057589 is to the Fibonacci numbers.
a(7) >= 23837527729. - Kevin P. Thompson, Nov 24 2021
CROSSREFS
KEYWORD
nonn,less,hard
AUTHOR
Jonathan Vos Post, Jun 16 2007
STATUS
approved