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A078976
Numerator of n-th convergent to e^(2/3).
1
1, 2, 37, 261, 298, 559, 5888, 318511, 5102064, 5420575, 10522639, 205350716, 18492087079, 462507527691, 480999614770, 943507142461, 26899199603678, 3390242657205889, 115295149544603904, 118685392201809793
OFFSET
1,2
FORMULA
Special cases : a(5k+1) = A001518(3k); a(5k+3) = A001518(3k+2).
PROG
(PARI)
default(realprecision, 100); /* large enough */
a(n)=contfracpnqn(contfrac(exp(2/3), n))[1, 1]
vector(30, n, a(n))
CROSSREFS
KEYWORD
frac,nonn
AUTHOR
Benoit Cloitre, Dec 19 2002
STATUS
approved