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Search: id:A141809
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A141809 Irregular table: Row n (of A001221(n) terms, for n>=2) consists of the largest powers that divides n of each distinct prime that divides n. Terms are arranged by the sizes of the distinct primes. Row 1 = (1). +0
3
1, 2, 3, 4, 5, 2, 3, 7, 8, 9, 2, 5, 11, 4, 3, 13, 2, 7, 3, 5, 16, 17, 2, 9, 19, 4, 5, 3, 7, 2, 11, 23, 8, 3, 25, 2, 13, 27, 4, 7, 29, 2, 3, 5, 31, 32, 3, 11, 2, 17, 5, 7, 4, 9, 37, 2, 19, 3, 13, 8, 5, 41, 2, 3, 7, 43, 4, 11, 9, 5, 2, 23, 47, 16, 3, 49, 2, 25, 3, 17, 4, 13, 53, 2, 27, 5, 11, 8, 7, 3 (list; table; graph; listen)
OFFSET

1,2

EXAMPLE

60 has the prime factorization of 2^2 * 3^1 * 5^1. So row 60 is (4,3,5).

CROSSREFS

Cf. A141810.

Sequence in context: A070772 A094937 A141810 this_sequence A059711 A043265 A026362

Adjacent sequences: A141806 A141807 A141808 this_sequence A141810 A141811 A141812

KEYWORD

nonn,tabl

AUTHOR

Leroy Quet (qq-quet(AT)mindspring.com), Jul 07 2008

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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