login

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

A270747 as a simple table

na(n)
12
22
31
42
52
61
73
87
971
103131
115821925
1214364035515947
13451397201144015321568515204
1488020328073777548345010277436911545872870466008026310
154344173888544359227731947461270153179826227998155726069662805370800638822815760136590246135744249701337368

[2,2,1,2,2,1,3,7,71,3131,5821925,14364035515947,
 451397201144015321568515204,
 88020328073777548345010277436911545872870466008026\
 310,
 43441738885443592277319474612701531798262279981557\
 26069662805370800638822815760136590246135744249701\
 337368]