# A276041 (b-file synthesized from sequence entry) 0 1 1 6 2 28 3 104 4 336 5 992 6 2752 7 7296 8 18688 9 46592 10 113664 11 272384 12 643072 13 1499136 14 3457024 15 7897088 16 17891328 17 40239104 18 89915392 19 199753728 20 441450496 21 970981376 22 2126512128 23 4638900224 24 10083106816 25 21843935232 26 47177531392 27 101602820096 28 218238025728