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A226041 Primes generated by concatenation of three consecutive numbers divided by three. 0
41, 263, 50539, 64007, 151549, 191953, 205421, 232357, 252559, 266027, 272761, 306431, 326633, 35035369, 39039373, 52386053, 62396063, 70404071, 77077411, 82416083, 96430097, 103103437, 106440107, 110444111 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

41 is in the list since concatenation of 1, 2 and 3 gives 123/3 = 41. Similarly concatenation of 15, 16 and 17 gives 151617 and 151617/3 = 50539, a prime.

MATHEMATICA

Select[Table[FromDigits[Flatten[IntegerDigits[n + Range[-1, 1]]]]/3, {n, 350}], PrimeQ]

CROSSREFS

Cf. A001703.

Sequence in context: A275180 A275128 A142113 * A233406 A020866 A142690

Adjacent sequences:  A226038 A226039 A226040 * A226042 A226043 A226044

KEYWORD

nonn,base

AUTHOR

Jayanta Basu, May 24 2013

STATUS

approved

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Last modified May 28 05:47 EDT 2022. Contains 354112 sequences. (Running on oeis4.)