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#33 by Alois P. Heinz at Tue May 09 19:45:31 EDT 2023
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#32 by Alois P. Heinz at Tue May 09 19:45:28 EDT 2023
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| KEYWORD
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nonn,base,easy,look,nice,changed
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| STATUS
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approved
editing
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#31 by Alois P. Heinz at Tue May 09 19:44:58 EDT 2023
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#30 by Chai Wah Wu at Tue May 09 14:57:03 EDT 2023
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#29 by Chai Wah Wu at Tue May 09 14:32:33 EDT 2023
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#28 by Chai Wah Wu at Tue May 09 14:32:18 EDT 2023
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| PROG
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(Python)
from itertools import count, combinations_with_replacement
def A003634(n):
for l in count(1):
if 9*l*n < 10**(l-1): return 0
c = 10**l
for d in combinations_with_replacement(range(10), l):
if sorted(str(a:=sum(d)*n)) == [str(e) for e in d] and a>0:
c = min(c, a)
if c < 10**l:
return c # Chai Wah Wu, May 09 2023
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| STATUS
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approved
editing
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#27 by N. J. A. Sloane at Wed Mar 31 04:36:36 EDT 2021
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#26 by Michel Marcus at Wed Mar 31 04:27:03 EDT 2021
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#25 by Michel Marcus at Wed Mar 31 04:26:58 EDT 2021
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#24 by Peter Luschny at Mon Jan 18 18:11:23 EST 2021
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