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A136731 Column 1 of square array A136730. 2
1, 2, 5, 23, 175, 1935, 28432, 523290, 11587072, 299942890, 8886126540, 296438370794, 10993731095695, 448604373236731, 19971257117211555, 963142501803505255, 50015707804752012825, 2782336529985704607295 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
CROSSREFS
Sequence in context: A191600 A343020 A167142 * A257030 A062495 A158889
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jan 19 2008
STATUS
approved

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Last modified April 23 14:49 EDT 2024. Contains 371914 sequences. (Running on oeis4.)