Exchange adjacent nonprimes and primes.
2, 1, 4, 3, 6, 5, 8, 7, 9, 11, 10, 13, 12, 14, 15, 17, 16, 19, 18, 20, 21, 23, 22, 24, 25, 26
2 seqfan posts
Wed Nov 4 15:08:43 CET 2009 [seqfan] Re: swapping primes and non-primes A026234 vs A167419
Wed Nov 4 14:44:28 CET 2009 [seqfan] swapping primes and non-primes A026234 vs A167419
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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