# A004402 (b-file synthesized from sequence entry) 0 1 1 -2 2 4 3 -8 4 14 5 -24 6 40 7 -64 8 100 9 -154 10 232 11 -344 12 504 13 -728 14 1040 15 -1472 16 2062 17 -2864 18 3948 19 -5400 20 7336 21 -9904 22 13288 23 -17728 24 23528 25 -31066 26 40824 27 -53408 28 69568 29 -90248 30 116624 31 -150144 32 192612 33 -246256 34 313808