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Differences of two factorial numbers.
1

%I #11 Nov 02 2012 05:00:26

%S 0,1,4,5,18,22,23,96,114,118,119,600,696,714,718,719,4320,4920,5016,

%T 5034,5038,5039,35280,39600,40200,40296,40314,40318,40319,322560,

%U 357840,362160,362760,362856,362874,362878,362879,3265920

%N Differences of two factorial numbers.

%C Contribution from _Olivier GĂ©rard_, Oct 09 2012: (Start)

%C This sequence can also be seen as a triangular table starting at offset 1.

%C 0

%C 1

%C 4 5

%C 18 22 23

%C 96 114 118 119

%C 600 696 714 718 719

%C 4320 4920 5016 5034 5038 5039

%C First column is A001563, first diagonal is A033312, row sum is A206816.

%C ;

%C or starting at offset 0:

%C 0

%C 1 4

%C 5 18 22

%C 23 96 114 118

%C 119 600 696 714 718

%C 719 4320 4920 5016 5034 5038

%C First column is A033312, first diagonal is n!-2, row sum is A185009.

%C (End)

%Y Cf. A204930 (ordered differences of factorial).

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Jan 05 2000