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A108541 Lesser prime factor of n-th golden semiprime. 8
2, 3, 7, 11, 19, 23, 29, 37, 41, 67, 79, 97, 101, 103, 107, 131, 149, 163, 167, 181, 193, 227, 241, 271, 277, 283, 311, 353, 367, 379, 383, 397, 409, 419, 433, 449, 457, 487, 509, 563, 607, 613, 631, 661, 719, 733, 761, 797, 853, 883, 919, 941, 971, 997, 1031 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n) = A108540(n)/A108542(n);

abs(phi-A108542(n)/a(n)) < 1, where phi = golden ratio = (1+sqrt(5))/2.

CROSSREFS

Cf. A084126, A108543, A108544, A108539.

Sequence in context: A077165 A090666 A140409 * A038937 A092940 A045326

Adjacent sequences:  A108538 A108539 A108540 * A108542 A108543 A108544

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 09 2005

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Last modified February 17 10:57 EST 2012. Contains 206009 sequences.