proposed
approved
editing
a(n) = Sum_{k=0..n} (-1)^k * ( * (2*k)^(n-k) * binomial(n,k).
Sidney Cadot: Replaced ideographic space character (unicode '\u3000') by a regular space character.
Cf. A216689, A292952, A356812, A356820.
G.f.: Sum_{k>=0} (-x)^k / (1 - 2*k*x)^(k+1).
a(n) = Sum_{k=0..n} (-1)^k * (2*k)^(n-k) * binomial(n,k).
Cf. A216689, A356812, A356820.
1, -1, -3, -1, 41, 239, 229, -8401, -87151, -324577, 3238541, 70271519, 601086265, 142860431, -81504662539, -1393683935281, -10777424809951, 63537986981183, 3552608426329117, 60283510555017023, 441644419610814281, -6191820436867600081
Cf. A356812, A356820.
