A076534 Let P(n,x) be defined by P(1,x)=P(2,x)=x, P(n,x)=P(n-1,x)*P(n-2,x)+1; then a(n) is the maximum element among coefficients of P(n,x) of degree F(n) (where F(n) denotes the n-th Fibonacci number).

1, 1, 1, 1, 2, 5, 24, 385, 45774, 124236810, 52075646675943, 74042280527396769046586, 55616731316060742570296970438105181057, 75267833765991336612465025866138211322891026878609911724838640

Offset

1,5

Links

Table of n, a(n) for n=1..14.

Example

P(6,x)= 2x^8 + 3x^6 + 2x^5 + 3x^4 + 5x^3 + 2x^2 + 3x + 3, hence a(6)=5

Crossrefs

Sequence in context: A025134 A340772 A370066 * A095708 A120759 A326971

Adjacent sequences: A076531 A076532 A076533 * A076535 A076536 A076537

Keyword

nonn

Author

Benoit Cloitre, Oct 18 2002

Status

approved