A001492 Clock chimes with a quarter-hour bell.

1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 4, 1, 1, 1, 5, 1, 1, 1, 6, 1, 1, 1, 7, 1, 1, 1, 8, 1, 1, 1, 9, 1, 1, 1, 10, 1, 1, 1, 11, 1, 1, 1, 12, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 4, 1, 1, 1, 5, 1, 1, 1, 6, 1, 1, 1, 7, 1, 1, 1, 8, 1, 1, 1, 9

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

Periodic sequence with period 48. - Michel Marcus, Jul 16 2013

Links

• John Cerkan, Table of n, a(n) for n = 0..1000
• Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Crossrefs

Cf. A007879, A007884.

Programs

PARI

a(n)=if((n+1)%4,1,((n+1)/4-1)%12+1)