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A078289 Least nontrivial multiple of the n-th prime beginning with 5. 8
50, 51, 50, 56, 55, 52, 51, 57, 506, 58, 527, 518, 533, 516, 517, 530, 531, 549, 536, 568, 511, 553, 581, 534, 582, 505, 515, 535, 545, 565, 508, 524, 548, 556, 596, 5134, 5024, 5053, 501, 519, 537, 543, 573, 579, 591, 597, 5064, 5129, 5221, 5038, 5126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

MATHEMATICA

f[n_] := Block[{k = 2, m = n}, While[ IntegerDigits[k*m][[1]] != 5, k++ ]; k*m]; Table[ f[ Prime[n]], {n, 1, 55}]

CROSSREFS

Cf. A078285, A078286, A078287, A078288, A078290, A078291, A078292, A078293.

Sequence in context: A256958 A165871 A171652 * A043618 A134691 A139182

Adjacent sequences:  A078286 A078287 A078288 * A078290 A078291 A078292

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Nov 26 2002

EXTENSIONS

Edited, corrected and extended by Robert G. Wilson v, Nov 29 2002

STATUS

approved

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Last modified May 30 06:51 EDT 2017. Contains 287302 sequences.