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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
OFFSET
0,1
COMMENTS
The left diagonal is the sequence of primes (A000040). The right diagonal is sequence A025487 (least prime signatures).
FORMULA
a(n) = A061579(A095904(n))
KEYWORD
nonn,tabl
AUTHOR
Will Nicholes, Jul 10 2010
STATUS
approved