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 A220487 Partial sums of triangle A206437. 0
 1, 3, 4, 7, 8, 9, 11, 15, 17, 18, 19, 20, 23, 28, 30, 31, 32, 33, 34, 35, 37, 41, 43, 46, 52, 55, 57, 59, 60, 61, 62, 63, 64, 65, 66, 69, 74, 76, 80, 87, 90, 92, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 107, 111, 113, 116, 122, 125, 127, 129, 134, 138 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..64. FORMULA a(A182181(n)) = A182244(n), n >= 1. a(A006128(n)) = A066186(n), n >= 1. EXAMPLE When written as an irregular triangle in which row j has length A194446(j) then the right border gives A182244. Also the records of row lengths give the partition numbers (A000041) of the positive integers as shown below: 1; 3, 4; 7, 8, 9; 11; 15,17,18,19,20; 23; 28,30,31,32,33,34,35; 37; 41,43; 46; 52,55,57,59,60,61,62,63,64,65,66; 69; 74,76; 80; 87,90,92,94,95,96,97,98,99,100,101,102,103,104,105; ... Also when written as an irregular triangle in which row j has length A138137(j) then the right border gives A066186 as shown below: 1; 3, 4; 7, 8, 9; 11,15,17,18,19,20; 23,28,30,31,32,33,34,35; 37,41,43,46,52,55,57,59,60,61,62,63,64,65,66; 69,74,76,80,87,90,92,94,95,96,97,98,99,100,101,102,103,104,105; ... CROSSREFS Cf. A000041, A006128, A066186, A135010, A138137, A138879, A141285, A182181, A182244, A186412, A194446, A206437. Sequence in context: A192052 A187230 A187901 * A110133 A205647 A187903 Adjacent sequences: A220484 A220485 A220486 * A220488 A220489 A220490 KEYWORD nonn,tabf AUTHOR Omar E. Pol, Jan 18 2013 STATUS approved

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Last modified November 29 06:17 EST 2023. Contains 367422 sequences. (Running on oeis4.)