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A160553 Numbers n not of the form 7k+4 such that A000041(49n+47) == 0 (mod 343). 1
36, 37, 55, 70, 79, 84, 93, 99, 105, 111, 118, 128, 134, 138, 140, 149, 156, 161, 163, 168, 174, 180, 185, 199, 208, 230, 240, 245, 247, 254, 255, 257, 260, 278, 282, 283, 289, 299, 300, 301, 331, 363, 365, 376, 377, 384, 385, 387, 397, 400 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

Watson, G. N., Ramanujans Vermutung ueber Zerfaellungsanzahlen. J. Reine Angew. Math. (Crelle), 179 (1938), 97-128. See p. 128.

PROG

(PARI) for(n=1, 10^3, if(n%7==4, next); if( numbpart(49*n+47)%343==0, print1(n, ", ")) ) \\ Max Alekseyev, Feb 13 2012

CROSSREFS

Sequence in context: A165857 A218052 A098079 * A295751 A031317 A257441

Adjacent sequences:  A160550 A160551 A160552 * A160554 A160555 A160556

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 14 2009

EXTENSIONS

Watson found the terms 36, 37, 55 via A002300.

Extended to a(24)=199 using Watson's method (but with Maple's help) by N. J. A. Sloane, Nov 14 2009

Terms a(25) onward from Max Alekseyev, Feb 13 2012

STATUS

approved

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Last modified December 15 20:00 EST 2019. Contains 330000 sequences. (Running on oeis4.)