A127498 - OEIS

%I #3 Mar 30 2012 18:37:03

%S 1,2,5,16,53,186,672,2465,9158,34354,129833,493534,1884955,7227522,

%T 27804584,107268790,414852381,1607836478,6243201267,24282747900,

%U 94587991975,368940451638,1440796181876,5632827891526,22043782012620

%N Secondary diagonal of triangle A127496: a(n) = A127496(n+1,n) for n>=0.

%Y Cf. A127496, A127497.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Jan 16 2007