id:A100106 - OEIS Search Results

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Decimal expansion of Sum_{k>0} -(-1)^k / k!^(1/k).

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

	OFFSET	`0,1`
	COMMENT	`Very slow convergence!`
	MAPLE	`P:=proc(n) local a, i; a:=0; for i from 1 by 1 to n do a:=evalf(a+(-1)^(i-1)/((i!)^(1/i)), 50); print(a); od; end: P(100000);`
	PROGRAM	`(PARI) {a(n) = if( n<0, 0, n++; floor(sumalt(k=1, -(-1)^k/k!^(1/k)) * 10^n) % 10)} /* Michael Somos Mar 01 2008 */`
	CROSSREFS	`Sequence in context: A021630 A079459 A118309 this_sequence A125650 A140724 A086055` `Adjacent sequences: A100103 A100104 A100105 this_sequence A100107 A100108 A100109`
	KEYWORD	`cons,nonn`
	AUTHOR	`Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Feb 14 2008`
	EXTENSIONS	`Definition corrected by Michael Somos, Mar 01 2008`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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