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A303369 Numbers equal to the determinant of a circulant matrix based on the base-9 digits of n. 4
1, 2, 3, 4, 5, 6, 7, 8, 104, 126, 130, 468, 2035, 8052, 8421, 12100, 18788, 21296, 60736, 90155, 109135, 119795, 123201, 137605, 147095, 160965, 199728, 457856, 523809, 697334, 2958176, 3652360, 4725030, 5331625, 6825024, 7014400, 7694336, 9376133, 14012352 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Base 9 variant of A219327. See A303366 .. A303368 for other bases.

LINKS

Table of n, a(n) for n=1..39.

EXAMPLE

104 is in the sequence because 104 = 125[9] (in base 9) and 104 = det [1,2,5; 5,1,2; 2,5,1].

PROG

(PARI) (c(v)=abs(matdet(matrix(#v, #v, i, j, v[(j-i)%#v+1])))); for(n=1, oo, n==c(digits(n, 9))&&print1(n", "))

CROSSREFS

Cf. A303366 (base 6), A303367 (base 7), A303368 (base 8), A219327 (base 10).

Sequence in context: A028430 A290148 A171717 * A154701 A004870 A037336

Adjacent sequences:  A303366 A303367 A303368 * A303370 A303371 A303372

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, May 05 2018

EXTENSIONS

a(31)-a(39) from Giovanni Resta, May 07 2018

STATUS

approved

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Last modified February 27 22:20 EST 2020. Contains 332312 sequences. (Running on oeis4.)