Integers n such that if you insert between each of their digits either "*" (times), "^" (exponentiation), or "nothing" (so that two or more digits are merged to form an integer), then you can recover n in a nontrivial way (however, two "^" mustn't be adjacent - you must avoid decompositions containing a^b^c).
2592, 34425, 35721, 312325, 344250, 357210, 492205, 1492992, 1729665, 1769472
1 seqfan posts
Tue Feb 17 17:37:51 CET 2009 [seqfan] "Printer's errors" sequences