Real-rooted atlas

Proof step

Affine-current basis map theorem

Image under a basis map u^k -> P_k A008288

Concludes
basis_map_A008288 of basis_map_A007318 of Triangle read by rows: T(n, k) is the number of diagonal dissections of a convex n-gon into k+1 regions.
Premises
Theorem
polytool RealRooted orderTwoConstants_nonneg_iff ?
Checked
polytool replayed · Lean not attempted
Technical details
Step id
e-7a79b89fdfd077a7 · JSON
Operation
Image under a basis map u^k -> P_k
{
  "map": "A008288",
  "operation": "basis_map"
}
Claims
{
  "claim": "real_rooted",
  "from_index": 0,
  "region": {
    "lower": {
      "closed": true,
      "exact": {
        "radicand": "2",
        "rational_part": "-3",
        "sqrt_coefficient": "-2"
      },
      "value": "-1564556493/268435456"
    },
    "upper": {
      "closed": true,
      "exact": {
        "radicand": "2",
        "rational_part": "-3",
        "sqrt_coefficient": "2"
      },
      "value": "-46056243/268435456"
    }
  }
}
Certificate
basis_map, SHA-256 475022965e77f29ce7d319a8938390b37d95f933ae3043d0d6cdf4fe637c8651, 24,483 bytes (3,247 compressed); download
polytool replayed the certificate when the step was written.
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