A160429 First differences of A160428.

8, 56, 56, 392, 56, 392, 392, 2744, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 392, 2744, 2744, 19208, 2744, 19208, 19208, 134456, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 392, 2744, 2744, 19208, 2744, 19208, 19208

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Formula

a(n) = 8 * 7^A000120(n-1) for n>=1.

Prog

(PARI) a(n) = 8*7^hammingweight(n-1); \\ Jinyuan Wang, Mar 14 2020

Crossrefs

Cf. A160411, A160428.

Sequence in context: A209114 A264644 A144748 * A003722 A364124 A044146

Adjacent sequences: A160426 A160427 A160428 * A160430 A160431 A160432

Keyword

nonn

Author

Omar E. Pol, Jun 01 2009

Extensions

Formula and more terms from Nathaniel Johnston, Nov 14 2010

More terms from Jinyuan Wang, Mar 14 2020

Status

approved