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A179216 Permutation of triangular array of numbers (greater than 1) arranged by prime signature. 9
2, 4, 3, 6, 9, 5, 8, 10, 25, 7, 12, 27, 14, 49, 11, 16, 18, 125, 15, 121, 13, 24, 81, 20, 343, 21, 169, 17, 30, 40, 625, 28, 1331, 22, 289, 19, 32, 42, 54, 2401, 44, 2197, 26, 361, 23, 36, 243, 66, 56, 14641, 45, 4913, 33, 529, 29, 48, 100, 3125, 70, 88, 28561, 50, 6859 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

The left diagonal is the sequence of primes (A000040). The right diagonal is sequence A025487 (least prime signatures).

LINKS

Table of n, a(n) for n=0..62.

Will Nicholes, Iterative mapping of prime signatures.

FORMULA

a(n) = A061579(A095904(n))

CROSSREFS

Cf. A095904, A179217, A179218, A179221, A179222, A179225, A179226, A179228.

Sequence in context: A120620 A094608 A256661 * A192176 A191711 A163280

Adjacent sequences:  A179213 A179214 A179215 * A179217 A179218 A179219

KEYWORD

nonn,tabl

AUTHOR

Will Nicholes, Jul 10 2010

STATUS

approved

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Last modified September 24 04:27 EDT 2017. Contains 292403 sequences.