A338937 - OEIS

A338937

a(n+1) = A001414(a(n)) + A001414(a(n-1)) with a(0)=1, a(1)=2.

1, 2, 2, 4, 6, 9, 11, 17, 28, 28, 22, 24, 22, 22, 26, 28, 26, 26, 30, 25, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19, 28, 30, 21, 20, 19

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OFFSET

0,2

COMMENTS

Enters 5-cycle 20,19,28,30,21 starting with a(20).

LINKS

Table of n, a(n) for n=0..76.

FORMULA

a(n) = a(n-5) for n >= 25.

a(n+1) = A001414(a(n)*a(n-1)).

EXAMPLE

a(5) = A001414(6) + A001414(4) = 5 + 4 = 9.