A373869
a(n) = Sum_{k=1..n} k! * k^(n-3) * Stirling1(n,k).
Original entry on oeis.org
0, 1, 0, 2, 26, 674, 28894, 1848216, 165229560, 19698788448, 3022496261616, 580460752264656, 136441193196585408, 38540172064949405616, 12883204327833557091984, 5030833813902039858261504, 2269484487197629285690675584, 1171368942033975021150888242304
Offset: 0
-
a(n) = sum(k=1, n, k!*k^(n-3)*stirling(n, k, 1));
A373870
a(n) = Sum_{k=1..n} k! * k^(n-3) * |Stirling1(n,k)|.
Original entry on oeis.org
0, 1, 2, 14, 254, 9154, 552034, 50183832, 6417140232, 1098719459424, 242758470248976, 67260880064331216, 22840933997866565184, 9330599517868641290160, 4514326567036815466609008, 2553018492454631240215801344, 1668797317379516060093446975104
Offset: 0
-
a(n) = sum(k=1, n, k!*k^(n-3)*abs(stirling(n, k, 1)));
A373871
a(n) = Sum_{k=1..n} k! * k^(n-3) * Stirling2(n,k).
Original entry on oeis.org
0, 1, 2, 13, 233, 8311, 495437, 44495263, 5619239453, 949995402271, 207228784973597, 56681221280785663, 19000392210559326173, 7661410911700580500831, 3658694812581483750630557, 2042247041839449013948374463, 1317554928647608644852032652893
Offset: 0
-
a(n) = sum(k=1, n, k!*k^(n-3)*stirling(n, k, 2));
Showing 1-3 of 3 results.