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 A023967 First digit after decimal point of 8th root of n. 1
 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA Array[ Function[ n, RealDigits[ N[ Power[ n, 1/8 ], 10 ], 10 ]// (#[ [ 1, #[ [ 2 ] ]+1 ] ])& ], 110 ] Table[Mod[Floor[10N[Surd[n, 8]]], 10], {n, 130}] (* Harvey P. Dale, Apr 11 2020 *) PROG (Python) from sympy import integer_nthroot def A023967(n): return integer_nthroot(n*10**8, 8)[0]%10 # Chai Wah Wu, Feb 27 2023 CROSSREFS Sequence in context: A365742 A064557 A365737 * A278163 A347635 A260999 Adjacent sequences: A023964 A023965 A023966 * A023968 A023969 A023970 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Olivier Gérard STATUS approved

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Last modified July 24 14:46 EDT 2024. Contains 374584 sequences. (Running on oeis4.)