

A295510


The numerators of the fractions in the SchinzelSierpiński tree A295511, read across levels. Also an encoding of Stern's diatomic series A002487.


3



2, 2, 3, 3, 7, 5, 7, 2, 17, 7, 11, 5, 11, 13, 5, 3, 241, 17, 29, 7, 17, 31, 43, 13, 43, 11, 17, 13, 29, 193, 11, 2, 13, 11, 37, 73, 67, 29, 41, 7, 23, 97, 79, 31, 73, 29, 19, 5, 37, 43, 73, 31, 157, 17, 23, 13, 41, 43, 199, 17, 19, 11, 7
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..63.


EXAMPLE

The triangle (row lengths are 2^(n1)) starts:
1: 2
2: 2, 3
3: 3, 7, 5, 7
4: 2, 17, 7, 11, 5, 11, 13, 5
5: 3, 241, 17, 29, 7, 17, 31, 43, 13, 43, 11, 17, 13, 29, 193, 11


PROG

(Sage) # uses[SSETree from A295511]
def A295510_row(n):
if n == 1: return [2]
return [r.numerator() for r in SSETree(n)]
for n in (1..6): print(A295510_row(n))


CROSSREFS

Cf. A002487, A295510, A295512.
Sequence in context: A192495 A162223 A133076 * A324520 A307737 A309684
Adjacent sequences: A295507 A295508 A295509 * A295511 A295512 A295513


KEYWORD

nonn,tabf


AUTHOR

Peter Luschny, Nov 23 2017


STATUS

approved



