A102147 Second Eulerian transform of 1, 2, 3, 4, 5, ... (A000027).

1, 1, 5, 35, 315, 3465, 45045, 675675, 11486475, 218243025, 4583103525, 105411381075, 2635284526875, 71152682225625, 2063427784543125, 63966261320836875, 2110886623587616875, 73881031825566590625

Offset

1,3

References

R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 256.

Links

Table of n, a(n) for n=1..18.

Formula

a(n) = Sum_{k=0..n} E(n,k) A000027(k), where E(n,k) is a second-order Eulerian number (A008517).

Crossrefs

Cf. A001147, A008517.

Apparently equals A051577(n-2), n > 1.

Sequence in context: A151344 A015683 A000357 * A051577 A124564 A260952

Adjacent sequences: A102144 A102145 A102146 * A102148 A102149 A102150

Keyword

nonn

Author

Ross La Haye, Feb 14 2005

Status

approved