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 A128197 Strong irregular primes. A prime is strong irregular iff it is a Bernoulli irregular prime and a Euler irregular prime. 4
 67, 101, 149, 263, 307, 311, 353, 379, 433, 461, 463, 491, 541, 577, 587, 619, 677, 691, 751, 761, 773, 811, 821, 877, 887, 929, 971, 1151, 1229, 1279, 1283, 1291, 1307, 1319, 1381, 1409, 1429, 1439, 1523, 1559, 1621, 1637, 1663, 1733, 1759, 1787, 1831, 1877 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Bernd C. Kellner, On irregular prime power divisors of the Bernoulli numbers, Math. Comp. 76 (2007) 405-441. Peter Luschny, Irregular Bernoulli and Euler Primes. The Prime Pages, Irregular Primes The Prime Pages, Euler Irregular CROSSREFS Cf. A000040, A000928, A120337. Sequence in context: A180557 A127732 A071958 * A140541 A136077 A180521 Adjacent sequences:  A128194 A128195 A128196 * A128198 A128199 A128200 KEYWORD hard,nonn AUTHOR Peter Luschny, Feb 27 2007 STATUS approved

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Last modified October 14 07:06 EDT 2019. Contains 327995 sequences. (Running on oeis4.)