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.

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

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 A354935 A310136

Adjacent sequences: A090845 A090846 A090847 * A090849 A090850 A090851

Keyword

nonn

Author

Paul D. Hanna, Dec 09 2003

Status

approved