A033173 Number of days in n years (n=2 is the first leap year).

365, 731, 1096, 1461, 1826, 2192, 2557, 2922, 3287, 3653, 4018, 4383, 4748, 5114, 5479, 5844, 6209, 6575, 6940, 7305, 7670, 8036, 8401, 8766, 9131, 9497, 9862, 10227, 10592, 10958, 11323, 11688, 12053, 12419, 12784, 13149, 13514, 13880

Offset

1,1

Links

Table of n, a(n) for n=1..38.

Formula

From Chai Wah Wu, Jan 27 2020: (Start)

See caveat in A033171 formula section.

a(n) = a(n-1) + a(n-4) - a(n-5) for n > 5.

G.f.: x*(365*x^3 + 366*x^2 + 365*x + 365)/(x^5 - x^4 - x + 1). (End)

Crossrefs

Cf. A033171.

Sequence in context: A276304 A033171 A033172 * A043443 A275271 A062681

Adjacent sequences: A033170 A033171 A033172 * A033174 A033175 A033176

Keyword

easy,nonn

Author

Jeff Burch

Extensions

a(19) corrected by Chai Wah Wu, Jan 27 2020

Status

approved