The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A355806 a(n) is the number of odd terms in n-th row of triangle A355802. 2
 1, 2, 2, 2, 2, 4, 4, 4, 6, 8, 8, 8, 6, 8, 10, 8, 10, 12, 12, 16, 14, 12, 10, 16, 16, 12, 18, 20, 16, 20, 18, 16, 22, 20, 20, 24, 26, 24, 26, 24, 24, 28, 26, 24, 30, 36, 32, 32, 22, 32, 34, 24, 34, 36, 28, 40, 38, 28, 34, 40, 32, 36, 42, 36, 42, 44, 36, 40, 46 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Rémy Sigrist, Table of n, a(n) for n = 0..8191 Rémy Sigrist, Illustration of the odd terms among the first 2^9 rows of triangle A355802 Rémy Sigrist, PARI program EXAMPLE The first terms, alongside the corresponding rows in A355802, are: n a(n) n-th row of A355802 - ---- ------------------------------ 0 1 [1] 1 2 [1, 1] 2 2 [1, 2, 1] 3 2 [1, 2, 2, 1] 4 2 [1, 2, 2, 2, 1] 5 4 [1, 2, 3, 3, 2, 1] 6 4 [1, 2, 3, 4, 3, 2, 1] 7 4 [1, 2, 3, 4, 4, 3, 2, 1] 8 6 [1, 2, 3, 5, 6, 5, 3, 2, 1] 9 8 [1, 2, 3, 5, 7, 7, 5, 3, 2, 1] PROG (PARI) See Links section. CROSSREFS Cf. A355802. Sequence in context: A104409 A274144 A214628 * A032576 A276420 A239494 Adjacent sequences: A355803 A355804 A355805 * A355807 A355808 A355809 KEYWORD nonn AUTHOR Rémy Sigrist, Jul 18 2022 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 21 18:57 EDT 2023. Contains 365503 sequences. (Running on oeis4.)