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A083106 Triangle read by rows in which the n-th row contains n smallest numbers whose product == 1 mod n. 4
1, 1, 3, 1, 2, 5, 1, 3, 5, 7, 1, 2, 3, 4, 9, 1, 5, 7, 11, 13, 19, 1, 2, 3, 4, 5, 6, 13, 1, 3, 5, 7, 9, 11, 13, 15, 1, 2, 4, 5, 7, 8, 10, 11, 13, 1, 3, 7, 9, 11, 13, 17, 19, 21, 31, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 35, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..90.

EXAMPLE

1

1 3

1 2 5

1 3 5 7

1 2 3 4 9

1 5 7 11 13 19

...

PROG

(PARI) for (n = 1, 70, rowProd = 1; x = 1; for (k = 1, n - 1, while (gcd(x, n) > 1, x = x + 1); print1(x); print1(" "); write1("a083106.txt", x); write1("a083106.txt", " "); rowProd = rowProd*x; x = x + 1); while (rowProd*x%n != 1%n, x = x + 1); print(x); write1("a083106.txt", x); write1("a083106.txt", " "); write1("a083107.txt", x); write1("a083107.txt", " "); write1("a083108.txt", rowProd*x); write1("a083108.txt", " "); write1("a083109.txt", (rowProd*x-1)/n); write1("a083109.txt", " "));

CROSSREFS

Cf. A083107, A083108, A083109.

Sequence in context: A113141 A134225 A136081 * A227042 A033765 A033777

Adjacent sequences:  A083103 A083104 A083105 * A083107 A083108 A083109

KEYWORD

nonn,tabl

AUTHOR

Amarnath Murthy, Apr 22 2003

EXTENSIONS

More terms from David Wasserman, Oct 08 2004

STATUS

approved

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Last modified November 18 17:33 EST 2019. Contains 329287 sequences. (Running on oeis4.)