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A113463 Triangle read by rows: n-th row is the smallest set of n numbers in arithmetic progression with the distinct prime signatures. 2
1, 1, 2, 2, 4, 6, 2, 4, 6, 8, 8, 9, 10, 11, 12, 23, 24, 25, 26, 27, 28, 24, 25, 26, 27, 28, 29, 30, 103, 114, 125, 136, 147, 158, 169, 180, 304, 330, 356, 382, 408, 434, 460, 486, 512, 324, 368, 412, 456, 500, 544, 588, 632, 676, 720, 8, 172, 336, 500, 664, 828, 992, 1156 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

In this sequence "smallest" means that the last term of the arithmetic progression is minimized, with ties broken by minimizing the first term (or equivalently, by maximizing the common difference).

LINKS

Table of n, a(n) for n=1..63.

CROSSREFS

Cf. A086786, A113462, A113464.

Sequence in context: A087377 A010768 A143267 * A278217 A191674 A238959

Adjacent sequences:  A113460 A113461 A113462 * A113464 A113465 A113466

KEYWORD

nonn,tabl,less

AUTHOR

David Wasserman, Jan 08 2006

STATUS

approved

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Last modified January 18 04:47 EST 2019. Contains 319269 sequences. (Running on oeis4.)