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A057949 Numbers with more than one factorization into S-primes. See A054520 and A057948 for definition. 3
441, 693, 1089, 1197, 1449, 1617, 1881, 1953, 2205, 2277, 2541, 2709, 2793, 2961, 3069, 3249, 3381, 3465, 3717, 3933, 3969, 4221, 4257, 4389, 4473, 4557, 4653, 4761, 4977, 5229, 5301, 5313, 5445, 5733, 5841, 5929, 5985, 6237, 6321, 6417, 6489, 6633 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

EXAMPLE

2205 is in S = {1,5,9, ... 4i+1, ...}, 2205 = 5*9*49 = 5*21^2; 5, 9, 21 and 49 are S-primes (A057948).

CROSSREFS

Cf. A054520, A057948, A057950.

Sequence in context: A187239 A124170 A207045 * A057950 A202400 A014793

Adjacent sequences:  A057946 A057947 A057948 * A057950 A057951 A057952

KEYWORD

nonn

AUTHOR

Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Oct 14 2000

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.