A181670 - OEIS

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A181670

Triangle read by rows: T(n,k) = 2^(n-1) mod prime(k), 1 <= k <= n.

1, 0, 2, 0, 1, 4, 0, 2, 3, 1, 0, 1, 1, 2, 5, 0, 2, 2, 4, 10, 6, 0, 1, 4, 1, 9, 12, 13, 0, 2, 3, 2, 7, 11, 9, 14, 0, 1, 1, 4, 3, 9, 1, 9, 3, 0, 2, 2, 1, 6, 5, 2, 18, 6, 19, 0, 1, 4, 2, 1, 10, 4, 17, 12, 9, 1, 0, 2, 3, 4, 2, 7, 8, 15, 1, 18, 2, 13, 0, 1, 1, 1, 4, 1, 16, 11, 2, 7, 4, 26, 37, 0, 2, 2, 2, 8, 2, 15

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..98.

EXAMPLE

Triangle begins:

0, 2;

0, 1, 4;

0, 2, 3, 1;

0, 1, 1, 2, 5;

0, 2, 2, 4,10, 6;