A069042 - OEIS

A069042

Numbers n such that the n-th Euler number (A000364) == 1 (mod n^2).

2, 17, 37, 1153, 1303

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OFFSET

1,1

LINKS

MATHEMATICA

Select[Range[2, 10000], Divisible[Abs[EulerE[2*#]] - 1, #^2] &] (* Amiram Eldar, Jun 03 2017 *)

CROSSREFS

KEYWORD

nonn,more

AUTHOR

EXTENSIONS

More terms from Hans Havermann, Apr 07 2003

STATUS

approved