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A134589 A modified Heron sequence starting from 1,3. 1
1, 3, 12, 49, 108, 243, 624 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Paul Yiu, K. R. S. Sastry and Shanzhen Gao, Heron Sequences, presented on the 2007 Integers Conference and INTEGERS - Electronic Journal of Combinatorial Number Theory, Article 16 Volume 9 Supplement (2009).

CROSSREFS

Cf. A134587, A134588.

Sequence in context: A226443 A304560 A060113 * A178872 A323263 A248347

Adjacent sequences:  A134586 A134587 A134588 * A134590 A134591 A134592

KEYWORD

nonn,more

AUTHOR

Shanzhen Gao, Nov 02 2007

STATUS

approved

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Last modified April 19 03:00 EDT 2019. Contains 322237 sequences. (Running on oeis4.)