login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A206457 as a simple table

na(n)
15
2216
34048
478050
51679508
640353460
71073741632
831381059366
9999999999700
1034522712143568
111283918464548432
1251185893014090250
132177953337809370548
1498526125335693358700
154722366482869645212928
16239072435685151324846286

[5,216,4048,78050,1679508,40353460,1073741632,
 31381059366,999999999700,34522712143568,
 1283918464548432,51185893014090250,
 2177953337809370548,98526125335693358700,
 4722366482869645212928,239072435685151324846286]