id:A073740 - OEIS Search Results

Search: id:A073740

Displaying 1-1 of 1 results found.

page 1

Self-convolution of A073739; odd terms are twice the odd primes.

+0
2

1, 2, 3, 6, 5, 10, 10, 14, 20, 22, 39, 26, 64, 34, 104, 38, 152, 46, 225, 58, 308, 62, 434, 74, 556, 82, 763, 86, 936, 94, 1224, 106, 1488, 118, 1857, 122, 2244, 134, 2706, 142, 3232, 146, 3827, 158, 4472, 166, 5240, 178, 6020, 194, 6997, 202, 7936, 206, 9122 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`The first odd prime is here considered to be p_0 = 1.`
	FORMULA	`a(0)=1, a(2n+1)=2p_n, a(2n)=sum_{k=0..2n}A073739(k)A073739(2n-k).`
	EXAMPLE	`a(9)= 2p_4= 22; a(8)= 10+14+10+23+00+32+01+41+01= 20.`
	CROSSREFS	`Cf. A036467, A073739.` `Sequence in context: A064923 A064924 A055944 this_sequence A077320 A019565 A133477` `Adjacent sequences: A073737 A073738 A073739 this_sequence A073741 A073742 A073743`
	KEYWORD	`easy,nice,nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Aug 07 2002`

page 1

Search completed in 0.002 seconds

Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research