A341482 - OEIS

A341482

Number of ways to write n as an ordered sum of 5 nonprime numbers.

1, 0, 0, 5, 0, 5, 10, 5, 25, 15, 30, 55, 45, 85, 105, 126, 180, 220, 260, 360, 415, 510, 650, 745, 915, 1101, 1270, 1525, 1800, 2045, 2440, 2780, 3225, 3660, 4250, 4771, 5465, 6185, 6930, 7840, 8816, 9790, 11015, 12240, 13505, 15146, 16595, 18385, 20240, 22325, 24255

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OFFSET

5,4

LINKS

Table of n, a(n) for n=5..55.

MAPLE

b:= proc(n, t) option remember;

`if`(n=0, `if`(t=0, 1, 0), `if`(t<1, 0, add(

`if`(isprime(j), 0, b(n-j, t-1)), j=1..n)))

end:

a:= n-> b(n, 5):

seq(a(n), n=5..55); # Alois P. Heinz, Feb 13 2021