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A091578 Permutation of primes generated by 2-rowed array shown below. +0
1
2, 7, 3, 11, 5, 19, 13, 23, 17, 37, 29, 41, 31, 53, 43, 59, 47, 71, 61, 73, 67, 89, 79, 97, 83, 107, 101, 109, 103, 131, 113, 137, 127, 151, 139, 157, 149, 173, 163, 179, 167, 193, 181, 197, 191, 223, 199, 227, 211, 239, 229, 241, 233, 263, 251, 257 (list; graph; listen)
OFFSET

1,1

COMMENT

2 7 11 19 23 37 41 53 59...(A060191)

3 5 13 17 29 31 43 47 61...(A060192)

FORMULA

a(n) = A000040(A090964(n)). a(n) = A000040(a(k+8) = a(k)+8).

CROSSREFS

Cf. A090964.

Sequence in context: A021891 A021369 A051430 this_sequence A056756 A120861 A099130

Adjacent sequences: A091575 A091576 A091577 this_sequence A091579 A091580 A091581

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Mar 05 2004. Corrected and extended Oct 13 2006, Oct 15 2006

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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