A287033 Column 3 of A286782.

7, 414, 14850, 446706, 12641265, 354665628, 10134495804, 299276271252, 9206327818259, 296247209694650, 9990889751320686, 353320474467334502, 13098406010068671725, 508634687713890475320, 20666091174548150099160, 877474636354254652191336, 38883242288915246015258751

Offset

4,1

Links

Gheorghe Coserea, Table of n, a(n) for n = 4..213

Formula

a(n) = (2*n-1)*A286788(n-1).

Crossrefs

Cf. A286782, A286788.

Sequence in context: A172894 A286393 A099742 * A367867 A362677 A331338

Adjacent sequences: A287030 A287031 A287032 * A287034 A287035 A287036

Keyword

nonn

Author

Gheorghe Coserea, May 18 2017

Status

approved