3841278805domain: NAppears in sequencesCentral factorial numbers: 2nd subdiagonal of A008956.at n=5A001825Triangle of central factorial numbers |4^k t(2n+1,2n+1-2k)| read by rows (n>=0, k=0..n).at n=33A008956Table of the number of (n,k)-Riordan complexes, read by rows.at n=30A160563