

A300150


"Erase or triple": list of the successive integers that produce the next "altitude" record (see the comments section).


3



1, 10, 23, 176, 1760, 2183, 2640, 23976, 24056, 26784, 29087, 29701, 30715, 31456, 32145, 46250, 47521, 51280, 52910, 53280, 58460, 73268, 92130, 92768, 283067, 290867, 301452, 307261, 315460, 317460, 321460, 324056, 324187, 341298, 1029857, 1035298, 1056943, 1805976, 1980726, 2197806, 2309571, 2381954
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OFFSET

1,2


COMMENTS

If the "Erase or triple" protocol is applied to a(1) = 1 (see A300148), the biggest integer reached is 17010; when the same protocol is applied to a(2) = 10, we reach the "altitude" 65610; when applied to a(3) = 23, the "altitude" reached is 121743; when applied to a(4) = 176, the "altitude" reached is 1154736; etc.
The sequence is finite and has 628 terms, with a(628) = 3291768054 (pandigital); a(628) reaches the maximum possible "altitude" 29625912486.


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CROSSREFS



KEYWORD

nonn,base,fini


AUTHOR



STATUS

approved



