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A115934 Numbers k such that k^4 contains a pandigital substring. 5

%I

%S 767,1839,1975,2358,2813,3089,3495,3824,4052,5596,5877,6292,6311,6386,

%T 6633,6666,6839,6886,7142,7670,8007,8241,9396,9796,10817,10839,11076,

%U 11644,14675,15069,15198,15923,16611,16615,16894,17179,17269,17751

%N Numbers k such that k^4 contains a pandigital substring.

%e 6666^4 = 7197(4518637029)136.

%o (Python)

%o def haspan(s): return any(len(set(s[i:i+10]))==10 for i in range(len(s)-9))

%o print([m for m in range(20000) if haspan(str(m**4))]) # _Michael S. Branicky_, Feb 28 2021

%Y Cf. A115933, A115935, A115936, A115937, A115938.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006

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Last modified January 28 12:18 EST 2023. Contains 359872 sequences. (Running on oeis4.)