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A090848 Positions of the terms of A090847^4 in A090847, where A090847 is equal to the union of the self-convolutions A090847^2 and A090847^4 when ordered by size. 2
1, 3, 6, 8, 11, 13, 16, 19, 21, 24, 26, 29, 32, 34, 37, 40, 42, 45, 47, 50, 53, 55, 58, 60, 63, 66, 68, 71, 73, 76, 79, 81, 84, 86, 89, 92, 94, 97, 99, 102, 105, 107, 110, 112, 115, 118, 120, 123, 126, 128, 131, 133, 136, 139, 141, 144, 146, 149, 152, 154, 157, 159, 162 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Given A090847(m)=A090847^4(n), then what is the limit m/n as n grows? Example: at n=2000, m/n=3202/2000=2.616, at n=3000, m/n=7849/3000=2.6163...

LINKS

Table of n, a(n) for n=0..62.

EXAMPLE

a(4)=11 since A090847^4(4)=A090847(11)=117, where

A090847={1,1,2,4,5,12,14,22,44,50,88,117,...} and

A090847^4={1,4,14,44,117,308,740,1700,3822,...}.

CROSSREFS

Cf. A090845, A090847.

Sequence in context: A224839 A122437 A286988 * A184657 A310136 A310137

Adjacent sequences:  A090845 A090846 A090847 * A090849 A090850 A090851

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 09 2003

STATUS

approved

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Last modified January 25 03:49 EST 2020. Contains 331241 sequences. (Running on oeis4.)