A293297 Row sums of A293472.

1, 2, 5, 13, 37, 106, 331, 981, 3473, 9010, 49481, -7435, 1744909, -13392950, 186659383, -2369054219, 33839782689, -510323573086, 8221794054733, -140449867800547, 2538204766893461, -48376680944601302, 969915363800997571, -20407191628360339979

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Formula

a(n) = p(n, 1) where p(n, t) is the n-th derivative of x^x with t = log(x), evaluated at x = 1.

Example

Since p(3, t) = 3 + 6*t + 3*t^2 + t^3 (compare the example in A293472), a(3) = p(3, 1) = 13.

Crossrefs

Cf. A293472.

Sequence in context: A092395 A233281 A218551 * A318485 A005961 A036249

Adjacent sequences: A293294 A293295 A293296 * A293298 A293299 A293300

Keyword

sign

Author

Peter Luschny, Oct 10 2017

Status

approved