From f05d888a0b621ca4e99e2b0fb6e23c097006fe41 Mon Sep 17 00:00:00 2001 From: Santo Cariotti Date: Tue, 28 May 2024 10:29:13 +0200 Subject: Init --- progs/a663.py | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 progs/a663.py (limited to 'progs/a663.py') diff --git a/progs/a663.py b/progs/a663.py new file mode 100644 index 0000000..7130b51 --- /dev/null +++ b/progs/a663.py @@ -0,0 +1,7 @@ +def count_binary_seq(n): + nCr = 1 + res = 1 + for r in range(1, n + 1): + nCr = (nCr * (n + 1 - r)) / r + res += nCr * nCr + return res \ No newline at end of file -- cgit v1.2.3-18-g5258