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Generalized Woodall primes of the form `n`•10ⁿ-1

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Reserved! This sequence is currently reserved by: Ryan Propper

Current data

ASCII format :	n*10^n-1
Base :	10
Count :	18
Max `n` :	1,000,000
Date :	2023-04-09
Reserved :	Ryan PropperRyan Propper/Reserved

2, 3, 8, 11, 15, 39, 60^[1], 72, 77, 117, 183, 252, 396, 1745, 2843, 4665, 5364, 524427

Remarks :

The sequence A059671 in OEIS

Notes

↑ Riesel 6•10⁶¹-1

History

2023-04-09: Checked to n = 1000000, Ryan Propper
2023-04-01: Reserved by Ryan Propper
2023-04-02: Found n = 524427, Ryan Propper
2000-02-07: Found n = 5364, Ray Ballinger
2000-02-05: Found n = 4665, Joe DeMaio
2000-02-04: Found n = 2843, Joe DeMaio
1997-03-03: Found n = 1745, Carlos Rivera

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