Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
505: | \[L_{505}\] | 11 × 809 × 7879 × 8081 × 334302931 × 4674144661<10> × 201062946718741<15> × 1365684787582999721<19> × 130075615656504440731<21> × 109335242750956558857181<24> |