A000492Number of permutations of an n-sequence discordant with three given permutations (see reference) in n-6 places.

20, 154, 1676, 14292, 155690, 1731708, 21264624, 280260864, 3970116255, 60113625680, 969368687752, 16588175089420, 300272980075896, 5733025551810600, 115148956467702600, 2427199940533198992, …

The first term appear at position 53.

…79502884197169399375105820974944592307816406286208…
position 53
termsstringfirst positionoccurrences
120539,994,661
220154500,9589,949
3201541676not within 1,000,000,0000

Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.