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A121954 Incorrect duplicate of A058307. 1
0, 1, 3, 13, 68, 420, 3015, 24541, 223884, 2263381, 25121075, 303716281, 3973432728, 55931774473, 842950049823, 13543132571641, 231076203767720, 4172914800390601 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n = 0..17

CROSSREFS

Sequence in context: A192737 A125279 A186371 * A058307 A020107 A284718

Adjacent sequences:  A121951 A121952 A121953 * A121955 A121956 A121957

KEYWORD

dead

STATUS

approved

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Last modified May 18 19:29 EDT 2021. Contains 344002 sequences. (Running on oeis4.)