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A059284 Right edge of triangle in A059283. 1
1, 1, 3, 11, 47, 219, 1081, 5557, 29439, 159611, 881405, 4940385, 28035205, 160751005, 929923395, 5420717819, 31809479855, 187757573787, 1114012352029, 6640357243537, 39746256802185, 238796968208537, 1439587364576015 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

G.f.: -(-2+(-3*w^2-6*w+1)^(1/2))/(1+w)^2.

CROSSREFS

Cf. A059283, A059226.

Sequence in context: A151160 A151161 A124890 * A118927 A174347 A062146

Adjacent sequences:  A059281 A059282 A059283 * A059285 A059286 A059287

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jan 24 2001

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Last modified February 17 22:48 EST 2012. Contains 206085 sequences.