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(1) |
with initial conditions
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(2) |
and
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(3) |
for 
.
Euler's Number Triangle, Number Triangle
Gessel, I. and Stanley, R. P. "Stirling Polynomials." J. Combin. Theory A 24, 24-33, 1978.
Graham, R. L.; Knuth, D. E.; and Patashnik, O. Concrete Mathematics: A Foundation for Computer Science, 2nd ed. Reading, MA: Addison-Wesley, p. 256, 1994.
Munch, O. J. "Om potensproduktsummer." Nordisk Matematisk Tidskrift 7, 5-19, 1959.
Sloane, N. J. A. Sequences A008517 in "The On-Line Encyclopedia of Integer Sequences." http://www.research.att.com/~njas/sequences/.