[seqfan] nontrivial permutation of digits

Jeremy Gardiner jeremy.gardiner at btinternet.com
Sun Sep 30 21:52:29 CEST 2012


Perhaps my understanding of 'nontrivial permutation of digits' is at fault:

But I think this excludes the identity permutation?

So:

A007930  Some nontrivial permutation of digits gives an even number.

22, 44, 66, 88, ... Do not belong in this sequence?

A007959  Some nontrivial permutation of digits is an odd number.

11, 33, 55, 77, ... Do not belong in this sequence?

Jeremy





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