id:A138738 - OEIS Search Results

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E.g.f. satisfies: A(x) = exp(x*exp(x^2*exp(x^3*exp(...exp(x^n*...))))).

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1, 1, 1, 7, 25, 121, 1561, 9871, 101137, 1293265, 15765841, 226501111, 3355388521, 55348183177, 981791212585, 19611613003711, 387083895223201, 8241127257050401, 193814428658623777, 4572332597344204135 (list; graph; listen)

	OFFSET	`0,4`
	EXAMPLE	`E.g.f: A(x) = 1 + x + 1/2x^2 + 7/6x^3 + 25/24x^4 + 121/120x^5 +...`
	PROGRAM	`(PARI) {a(n)=local(A=1); for(i=0, n-1, A=exp(x^(n-i)A+xO(x^n))); n!*polcoeff(A, n)}`
	CROSSREFS	`Cf. A138292.` `Sequence in context: A110240 A129791 A138292 this_sequence A057573 A082651 A088009` `Adjacent sequences: A138735 A138736 A138737 this_sequence A138739 A138740 A138741`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Mar 27 2008`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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