# A337072 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 10 4 141 5 6769 6 1298995 7 1148840085 8 5307091649182 9 143026276277298216 10 24801104674619158730662 11 30190572492693121799801655311 12 278937095127086600900558327826721594