A020230 Strong pseudoprimes to base 4.

341, 1387, 2047, 3277, 4033, 4371, 4681, 5461, 8321, 8911, 10261, 13747, 14491, 15709, 15841, 19951, 29341, 31621, 42799, 49141, 49981, 52633, 60787, 65077, 65281, 74665, 80581, 83333, 85489, 88357, 90751, 104653, 123251, 129921, 130561, 137149

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..229 from R. J. Mathar)

Eric Weisstein's World of Mathematics, Strong Pseudoprime

Index entries for sequences related to pseudoprimes

Crossrefs

Cf. A020136 (base 4), A001262 (base 2), A020229 (base 3), A020231 (base 5), A020232 (base 6), A020233 (base 7), A020234 (base 8), A020235 (base 9), A020236 (base 10), A020237 (base 11), A020238 (base 12).

Sequence in context: A050217 A214305 A086837 * A087716 A084653 A354694

Adjacent sequences: A020227 A020228 A020229 * A020231 A020232 A020233

Keyword

nonn

Author

David W. Wilson

Status

approved