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%I #6 Jul 02 2023 06:07:17
%S 1,1,4,19,132,1119,12057,151560,2234970,37355130,702161460,
%T 14608747440,333760916475,8297318063475,223043540630400,
%U 6444290305953675,199158606533605950,6554872218153191625,228899544451085017125,8452452568601816775000,329069272855540304587500
%N Third column (m=3) of triangle S2hat(-1) = A144270.
%F a(n) = A144270(n+3,3), n>=0.
%Y Cf. A144270, A144272 (column m=2).
%K nonn,easy
%O 0,3
%A _Wolfdieter Lang_, Oct 09 2008
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