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A219997 Decades whose prime pattern is same as the prime pattern in the previous decade, with at least one prime. 2
38, 79, 125, 140, 155, 181, 235, 277, 289, 292, 311, 332, 437, 445, 500, 533, 559, 610, 617, 625, 649, 697, 707, 718, 751, 821, 857, 874, 895, 952, 962, 974, 1048, 1073, 1100, 1115, 1189, 1271, 1310, 1348, 1352, 1357, 1367, 1384, 1415, 1420, 1430, 1448, 1474 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

V. Raman, Table of n, a(n) for n = 1..10000

FORMULA

a(n) >> n log^2 n.

a(n) = A216329(n) + 1.

PROG

(PARI) for(i=2, 1500, if(isprime(10*i-9)==isprime(10*i+1)&&isprime(10*i-7)==isprime(10*i+3)&&isprime(10*i-3)==isprime(10*i+7)&&isprime(10*i-1)==isprime(10*i+9)&&isprime(10*i+1)+isprime(10*i+3)+isprime(10*i+7)+isprime(10*i+9)>=1, print1(i", ")))

CROSSREFS

Cf. A190639.

Cf. A216329 (lower decade).

Sequence in context: A044485 A160846 A219999 * A039421 A043244 A044024

Adjacent sequences: A219994 A219995 A219996 * A219998 A219999 A220000

KEYWORD

nonn,base

AUTHOR

V. Raman, Dec 07 2012

STATUS

approved

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Last modified December 9 14:35 EST 2022. Contains 358700 sequences. (Running on oeis4.)