# A025534 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 4 4 17 5 13 6 77 7 128 8 334 9 292 10 2871 11 2588 12 30697 13 28211 14 26121 15 48640 16 773828 17 727240 18 13035026 19 12337264 20 11711342 21 11146396 22 244579999 23 233836352 24 1120013966 25 1074836584 26 3099540819 27 2983938788 28 83423830027 29 80530073893 30 2412760934249