OFFSET
1,4
LINKS
R. Chapman, A polynomial taking integer values, Mathematics Magazine 29 (1996), p. 121.
MATHEMATICA
PROG
(Python)
from sympy import fibonacci, factorial
from operator import mul
from functools import reduce
def f(j): return fibonacci(j + 1)
def v(n): return 1 if n==1 else reduce(mul, [reduce(mul, [f(k) - f(j) for j in range(1, k)]) for k in range(2, n + 1)])
def d(n): return reduce(mul, [factorial(i - 1) for i in range(1, n + 1)])
print([v(n)//d(n) for n in range(1, 14)]) # Indranil Ghosh, Jul 26 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 01 2012
STATUS
approved