A077575 a(n) = A077573(n)/prime(n).

0, 37, 0, 15873, 1, 8547, 65359477124183, 5847953216374269, 48309178743961352657, 38314176245210727969348659, 3584229390681, 3, 271, 2583979328165374677, 23640661938534278959810874704491725768321513

Offset

1,2

Comments

Product a(n)*Prime(n) = a repunit.

References

Amarnath Murthy, On the divisors of Smarandache Unary Sequence. Smarandache Notions Journal, Vol. 11, 2000.

Links

Table of n, a(n) for n=1..15.

Crossrefs

Cf. A077573, A071126.

Sequence in context: A058458 A180463 A190301 * A215258 A176795 A272725

Adjacent sequences: A077572 A077573 A077574 * A077576 A077577 A077578

Keyword

nonn

Author

Amarnath Murthy, Nov 11 2002

Extensions

More terms from Ray G. Opao, Nov 02 2004

Status

approved