A078288 - OEIS

A078288

Least nontrivial multiple of the n-th prime beginning with 4.

4, 42, 40, 42, 44, 403, 408, 418, 46, 406, 403, 407, 410, 430, 423, 424, 413, 427, 402, 426, 438, 474, 415, 445, 485, 404, 412, 428, 436, 452, 4064, 4061, 411, 417, 447, 453, 471, 489, 4008, 4152, 4117, 4163, 4011, 4053, 4137, 4179, 422, 446, 454, 458, 466

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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]] != 4, k++ ]; k*m]; Table[ f[ Prime[n]], {n, 1, 55}]

CROSSREFS

Cf. A078285, A078286, A078287, A078289, A078290, A078291, A078292, A078293.

Sequence in context: A022500 A320335 A076652 * A349455 A089551 A347320

Adjacent sequences: A078285 A078286 A078287 * A078289 A078290 A078291

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