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A115934 Numbers k such that k^4 contains a pandigital substring. 5
767, 1839, 1975, 2358, 2813, 3089, 3495, 3824, 4052, 5596, 5877, 6292, 6311, 6386, 6633, 6666, 6839, 6886, 7142, 7670, 8007, 8241, 9396, 9796, 10817, 10839, 11076, 11644, 14675, 15069, 15198, 15923, 16611, 16615, 16894, 17179, 17269, 17751 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..38.

EXAMPLE

6666^4 = 7197(4518637029)136.

PROG

(Python)

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

print([m for m in range(20000) if haspan(str(m**4))]) # Michael S. Branicky, Feb 28 2021

CROSSREFS

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

Sequence in context: A234163 A159209 A045142 * A252072 A200856 A116301

Adjacent sequences: A115931 A115932 A115933 * A115935 A115936 A115937

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified December 4 14:04 EST 2022. Contains 358558 sequences. (Running on oeis4.)