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A071827

Concatenate first n terms of A007770 in reverse order.

1, 71, 1071, 131071, 19131071, 2319131071, 282319131071, 31282319131071, 3231282319131071, 443231282319131071, 49443231282319131071, 6849443231282319131071, 706849443231282319131071, 79706849443231282319131071, 8279706849443231282319131071, 868279706849443231282319131071

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OFFSET

1,2

REFERENCES

Shyam Sunder Gupta, Smarandache Sequence of Happy Numbers, Smarandache Notions Journal, Vol. 13 (2002).

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

a(3)=1071 because 10,7,1 are consecutive terms of A007770 in reverse order.

CROSSREFS

Cf. A007770.

Sequence in context: A200909 A175215 A231414 * A289899 A267475 A241940