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A195327 Number of bases to which members of A194946 are pseudoprime. 3
2, 4, 8, 16, 36, 40, 48, 100, 144, 324, 484, 900, 1296, 1764, 2116, 2704, 3600, 6084, 9216, 13728, 19044, 24336, 30000, 39204, 39360, 44100, 51984, 63888, 72900, 81648, 93636, 108900, 112896, 133956, 142884, 191844, 229376, 248004, 269568, 298116 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..659

Index entries for sequences related to pseudoprimes

PROG

(PARI) bases(n)=my(f=factor(n)[, 1]); n--; prod(i=1, #f, gcd(f[i]-1, n)) \\ Given a value of A194946, this function transforms it to a member of this sequence.

CROSSREFS

Cf. A194946, A195328.

Sequence in context: A247293 A126137 A085294 * A266544 A333051 A034340

Adjacent sequences:  A195324 A195325 A195326 * A195328 A195329 A195330

KEYWORD

nonn

AUTHOR

Charles R Greathouse IV, Sep 15 2011

STATUS

approved

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Last modified July 8 04:16 EDT 2020. Contains 335504 sequences. (Running on oeis4.)