A133260 Unknown.

20, 22, 30, 44, 66, 94

Offset

1,1

Comments

Possible solution: a(1) = 20 and a(n) = a(n-1) + 2 * A078309(n-1) for n >=2 , giving 20, 22, 30, 44, 66, 94, 128, 170, 218, 272, 334, 402, 476, 558, 646, 740, 842, ... . - Michal Paulovic, Nov 05 2023

Links

Table of n, a(n) for n=1..6.

Crossrefs

Cf. A078309.

Sequence in context: A036227 A328636 A171953 * A163630 A259735 A033906

Adjacent sequences: A133257 A133258 A133259 * A133261 A133262 A133263

Keyword

nonn,unkn

Author

kidon (kidonoscar(AT)hotmail.com), Oct 15 2007

Status

approved