A153840 - OEIS

%I #8 Jan 16 2022 00:29:27

%S 7,4,4,1,6,3,1,5,2,7,4,2

%N First Sunday in the n-th month of a 365-day year starting on Monday.

%F a(n)+1 = A153839(n) (mod 7). [_R. J. Mathar_, Mar 20 2010]

%t fs[mo_]:=Module[{s=1},While[DayName[{2001,mo,s}]!=Sunday,s++];s]; Array[ fs,12] (* _Harvey P. Dale_, Sep 10 2017 *)

%Y Cf. A153839.

%K nonn,fini,full

%O 1,1

%A _J. Lowell_, Jan 02 2009

%E Keywords fini,full added by _R. J. Mathar_, Mar 20 2010