A194659 - OEIS

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A194659

A104272(n) - A194658(n).

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 12, 0, 0, 0, 0, 36, 32, 0, 0, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 0, 0, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 36, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 0, 0, 0, 0, 18, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 40 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,13`
	COMMENTS	`Conjecture 1. The sequence is unbounded.` `Records are 0, 18, 36, 48, ... with indices 1, 13, 19, 43, ... .` `The places of nonzero terms correspond to places of those terms of A194658` `which are in A164288. Moreover, for n>=1, places of nonzero terms of A194659 and A194186(n+1) coincide. This means that these sequences have the same lengths of the series of zeros.` `Conjecture 2. The asymptotic density of nonzero terms is 2/(e^2+1).`
	LINKS	`Table of n, a(n) for n=1..117.`
	CROSSREFS	`Cf. A104272, A194658, A194186, A164288` `Sequence in context: A035616 A195926 A195929 * A194186 A033668 A030239` `Adjacent sequences: A194656 A194657 A194658 * A194660 A194661 A194662`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Shevelev, Sep 01 2011`
	STATUS	`approved`

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Last modified May 23 12:58 EDT 2013. Contains 225588 sequences.