# Delbert L. Johnson, Saturday, March 25, 2023
# C#. Code available at : https://github.com/deljohnson1/OEIS
0 1
1 2
2 24
3 40320
4 20922789888000
5 263130836933693530167218012160000000
6 126886932185884164103433389335161480802865516174545192198801894375214704230400000000000000
7 385620482362580421735677065923463640617493109590223590278828403276373402575165543560686168588507361534030051833058916347592172932262498857766114955245039357760034644709279247692495585280000000000000000000000000000000
8 857817775342842654119082271681232625157781520279485619859655650377269452553147589377440291360451408450375885342336584306157196834693696475322289288497426025679637332563368786442675207626794560187968867971521143307702077526646451464709187326100832876325702818980773671781454170250523018608495319068138257481070252817559459476987034665712738139286205234756808218860701203611083152093501947437109101726968262861606263662435022840944191408424615936000000000000000000000000000000000000000000000000000000000000000
# Sequence terminated due to next value exceeding 1000 digits.
# Elapsed Time (ms): 6.