%I #5 Jul 03 2023 14:52:33
%S 1,3,30,321,4788,84483,1892835,48681864,1471877946,50200415496,
%T 1925842959810,81617639962320,3796524406060155,191934556035324795,
%U 10484757631267725960,615052198937234606625,38564916668583937458750,2573353724722205851069875
%N Third column (m=3) of triangle S2hat(-3) = A144280.
%F a(n) = A144280(n+3,3), n>=0.
%Y Cf. A144280, A144282 (m=2 column).
%K nonn,easy
%O 0,2
%A _Wolfdieter Lang_, Oct 09 2008