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Triangle read by rows: numbers n and prime numbered columns p such that T(n, p) is n mod p.

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0, 1, 0, 0, 1, 1, 2, 0, 0, 0, 1, 1, 1, 2, 0, 0, 2, 3, 1, 1, 0, 4, 2, 0, 1, 0, 3, 1, 2, 1, 4, 0, 0, 0, 2, 5, 1, 1, 1, 3, 6, 2, 0, 0, 2, 4, 0, 3, 1, 1, 0, 0, 1, 4, 2, 0, 1, 1, 2, 5, 3, 1, 2, 2, 3, 6, 4, 0, 0, 0, 3, 4, 7, 5, 1, 1, 1, 4, 5, 8, 6, 2, 0, 0, 2, 0, 6, 9, 7, 3, 1, 1, 0, 1, 0, 10, 8, 4, 2 (list; graph; listen)

	OFFSET	`2,7`
	COMMENT	`The triangle begins with T(2, 2).` `A number p is prime, beginning a new column, iff T(p, k) is nonzero for all k < p; T(p, p) is then 0.` `Each row can be produced from the previous row by adding one to each number and resetting to zero any which would equal their column number. A complex pattern emerges if values in the triangle are taken modulo 2.` `The triangle begins as so:` `[2] 0` `[3] 1 0` `... 0 1` `[5] 1 2 0` `... 0 0 1` `[7] 1 1 2 0` `... 0 2 3 1` `... 1 0 4 2` `... 0 1 0 3`
	LINKS	`Eric Weisstein's World of Mathematics, Redheffer Matrix`
	CROSSREFS	`Cf. A002321, A083058` `Sequence in context: A106405 A089310 A129753 this_sequence A070936 A014081 A091890` `Adjacent sequences: A147690 A147691 A147692 this_sequence A147694 A147695 A147696`
	KEYWORD	`easy,nonn,tabf`
	AUTHOR	`Reikku Kulon (reikku(AT)gmail.com), Nov 10 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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