A234941 A001212(n-1)+2.

2, 4, 6, 10, 14, 18, 22, 28, 34, 42, 48, 56, 66, 74, 82, 94, 106, 118, 130, 142, 154, 166, 182, 198, 214

Offset

1,1

Comments

Solution to a "stamp chains" problem.

Links

Table of n, a(n) for n=1..25.

J. Kohonen and J. Corander, Addition Chains Meet Postage Stamps: Reducing the Number of Multiplications, J. Integer Seq., 17 (2014), Article 14.3.4.

Crossrefs

A001212 is the main entry for this sequence.

Cf. also A196094.

Sequence in context: A356959 A062091 A100143 * A303744 A362488 A059254

Adjacent sequences: A234938 A234939 A234940 * A234942 A234943 A234944

Keyword

nonn

Author

N. J. A. Sloane, Jan 08 2014

Status

approved