A285868 Row sums of triangle A285867.

1, 1, 4, 20, 126, 962, 8646, 89546, 1051350, 13811642, 200866326, 3205348346, 55704133590, 1047489675962, 21195507649686, 459258707587706, 10610386574074710, 260385846630175802, 6764666952807962646

Offset: 0

Author

Wolfdieter Lang, May 04 2017

Keywords

• nonn
• easy

Comments

See A285867 for details.

Crossrefs

Cf. A000629, A285867.

Formula

a(n) = Sum_{k=0..n} A285867(n, k).

a(n) = 1 for n = 0 and A000629(n) - n! for n >= 1.