

A296478


Decimal expansion of limiting powerratio for A295950; see Comments.


3



6, 9, 2, 0, 2, 0, 8, 3, 1, 1, 6, 9, 3, 1, 5, 9, 1, 0, 8, 5, 8, 8, 2, 1, 3, 4, 0, 8, 4, 9, 4, 1, 9, 8, 7, 0, 5, 7, 3, 8, 6, 7, 8, 6, 9, 1, 5, 5, 2, 6, 8, 4, 6, 2, 5, 3, 7, 6, 6, 9, 9, 3, 8, 5, 4, 7, 1, 8, 2, 0, 5, 8, 1, 2, 0, 8, 6, 0, 7, 4, 0, 3, 5, 6, 5, 8
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OFFSET

1,1


COMMENTS

Suppose that A = (a(n)), for n >= 0, is a sequence, and g is a real number such that a(n)/a(n1) > g. The limiting powerratio for A is the limit as n>oo of a(n)/g^n, assuming that this limit exists. For A = A295950, we have g = (1 + sqrt(5))/2, the golden ratio (A001622). See the guide at A296469 for related sequences.


LINKS

Table of n, a(n) for n=1..86.


EXAMPLE

limiting powerratio = 6.920208311693159108588213408494198705738...


MATHEMATICA

a[0] = 1; a[1] = 4; b[0] = 2; b[1 ] = 3; b[2] = 5;
a[n_] := a[n] = a[n  1] + a[n  2] + b[n];
j = 1; While[j < 13, k = a[j]  j  1;
While[k < a[j + 1]  j + 1, b[k] = j + k + 2; k++]; j++];
Table[a[n], {n, 0, k}]; (* A295950 *)
z = 2000; g = GoldenRatio; h = Table[N[a[n]/g^n, z], {n, 0, z}];
StringJoin[StringTake[ToString[h[[z]]], 41], "..."]
Take[RealDigits[Last[h], 10][[1]], 120] (* A296478 *)


CROSSREFS

Cf. A001622, A295950, A296284, A296477.
Sequence in context: A011454 A274480 A115145 * A195403 A021595 A197696
Adjacent sequences: A296475 A296476 A296477 * A296479 A296480 A296481


KEYWORD

nonn,easy,cons


AUTHOR

Clark Kimberling, Jan 05 2018


STATUS

approved



