id:A061349 - OEIS Search Results

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Sum of antidiagonals of A060736.

+0
1

0, 1, 6, 17, 40, 75, 130, 203, 304, 429, 590, 781, 1016, 1287, 1610, 1975, 2400, 2873, 3414, 4009, 4680, 5411, 6226, 7107, 8080, 9125, 10270, 11493, 12824, 14239, 15770, 17391, 19136, 20977, 22950, 25025, 27240, 29563, 32034, 34619, 37360, 40221 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(1)=1, a(2)=2+4=6, a(3)=5+3+9=17, a(4)=10+6+8+16=40.`
	FORMULA	`a(n) =A005900(n)-A006918(n) =a(n-1)+A001844(n-1)-A002378(A004526(n-1)) =a(n-1)+n^2+(n-1)^2-[(n-1)/2][(n+1)/2] with a(0)=0. If n is odd then a(n)=(7n^3+5n)/12; if n is even then a(n)=(7n^3+8n)/12.`
	CROSSREFS	`Sequence in context: A004799 A085278 A080275 this_sequence A101945 A013319 A047861` `Adjacent sequences: A061346 A061347 A061348 this_sequence A061350 A061351 A061352`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jun 07 2001`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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