A027162 a(n) = T(2n-1,n-2), T given by A027157.

4, 15, 112, 440, 3328, 13552, 103168, 429696, 3282944, 13882880, 106307584, 454471680, 3485499392, 15022878720, 115345653760, 500317061120, 3844727111680, 16761479102464, 128891635105792, 564250624917504, 4341301000536064

Offset

2,1

Links

Table of n, a(n) for n=2..22.

Crossrefs

Sequence in context: A009315 A350484 A303654 * A354889 A197703 A352608

Adjacent sequences: A027159 A027160 A027161 * A027163 A027164 A027165

Keyword

nonn

Author

Clark Kimberling

Status

approved