1,1
a(6) > 10^12. - Giovanni Resta, Oct 28 2012
Table of n, a(n) for n=1..5.
2158803990 is in the sequence because sigma(2158803990)
=6951619584=7*993088512=7*reversal(2158803990).
Cf. A069216, A105324, A114928.
Sequence in context: A209713 A230681 A209793 * A226003 A203921 A237918
Adjacent sequences: A115745 A115746 A115747 * A115749 A115750 A115751
base,more,nonn
Farideh Firoozbakht, Feb 12 2006
a(5) from Donovan Johnson, Dec 21 2008
approved
